13: Framed

Flashback…1997…a young Baek Hee Sung stands on the roof of the school. He holds a brick over the side and drops it on an unsuspecting student. He tells the principal that he was distraught over bad grades and doesn't remember what happened after that. He's sent out of the room leaving Gong Mi Ja (Hee Sung's Mother). She declares this is her fault. Hee Sung wipes away the crocodile tears and smiles. He finds Hyun Soo and his father waiting. When Hyun Soo leaves, Do Min Seok (Do Hyun Soo's Father) knows who Hee Sung is and what he's done. He asks Hee Sung why he threw the brick. Hee Sung claims he was depressed. Do Min Seok believes Hee Sung was curious what would happen. Hee Sung scoffs. Do Min Seok says Hee Sung doesn't know how to have fun. Do Min Seok says he needs to find another like him. Do Min Seok suggests Hee Sung is lonely.

Baek Hee Sung and Baek Man Woo (Hee Sung's Father) load the dead housekeeper into the trunk. Cha Ji Won and Do Hyun Soo ring the doorbell. Mr. Baek is shocked to see them on the screen. Mrs. Baek ask why they've come. Hyun Soo reports he has something to tell them. Ji Won says she knows what happened in the house. She suggests the Baeks talk to them. The door opens. Ji Won and Hyun Soo enter the house. Mr. and Mrs. Baek wait in the living room. Mr. Baek asks why they are there. Mrs. Baek asks what they know. Ji Won asks what they are hiding. Mr. Baek asks if Ji Won knows about her husband and if she'll accept it. Ji Won vows to stay by Hyun Soo's side. Mr. Baek says there is much to talk about. Ji Won says another person lives here. She asks where he is.

Mr. and Mrs. Baek take Ji Won and Hyun Soo to Hee Sung's secret room. He's hooked to the CPAP machine. Mrs. Baek says they argued because of the car accident and something happened. Mr. Baek states that the drugs to keep their son alive created a cascade of organ failure. Mr. Baek says the state of their son is their untold secret. He offers to let Hyun Soo live as Hee Sung. Hyun Soo looks at his watch and says now they'll learn who the accomplice was.

CEO Yeom Sang Cheol drive to the summer house to kill Hyun Soo. Detective Choi Jae Sub and the police are waiting for him.

Mr. Baek asks what they want. Mr. Baek wants to know if Hyun Soo thinks he knows who the accomplice is. Hyun Soo points out that only Mr. Baek knows he was going to the summer house.

Flashback…Mr. Baek tells CEO Yeom to get the job done.

Hyun Soo believes Mr. Baek gave CEO Yeom the address and time. Ji Won says the police are waiting for CEO Yeom.

A car arrives at the summer house. A man exits the car. They arrest him.

Hyun Soo relays that CEO Yeom was offered double dollars not to reveal the accomplice. Hyun Soo says the only person that knew the dollar amount Hyun Soo was providing was Mr. Baek. Hyun Soo believes Mr. Baek is the accomplice. He stands outraged. Ji Won says she'll arrest him once the police capture CEO Yeom. Mr. Baek laughs. Detective Choi calls Hyun Soo who takes the call. Detective Choi reports the caretaker came to the summer cabin not CEO Yeom per Mr. Baek's directions. Hyun Soo realizes he was played. Mr. Baek declares he's not a serial killer. Hyun Soo tells Ji Won that Mr. Baek sent the caretaker to the summer cabin. Mr. Baek swears he was NOT the accomplice. He says they are trying to force the evidence to frame him. Hyun Soo says his gut tells him Mr. Baek did it. Mrs. Baek declares she's the person responsible.

Out of his sick bed, Hee Sung declares Hyun Soo will be a game piece in his board game.

Mrs. Baek gives the housekeeper's note to Ji Won. Before she can read it, the lights go out. Mr. Baek says he'll flip the circuit breaker. He opens the door and sees his son.

Flashback…As Mr. Baek directs CEO Yeom to go to the summer house, Hee Sung takes the phone and asks if he spilled the family secrets to Hyun Soo. CEO Yeom says he told Hyun Soo that someone paid him to kill him. Hee Sung directs CEO Yeom to do nothing and sit tight. He hangs up. Hee Sung tells his parents Hyun Soo has created a trap for CEO Yeom and them. They are taken aback. Hee Sung realizes Hyun Soo is fishing for evidence. Hee Sung says they'll create a situation for Hyun Soo tonight.

Hee Sung exits his parents' house.

Ji Won points out that the housekeeper is deaf and dumb. Therefore, she cannot be the person that communicated with Do Min Seok or CEO Yeom. Mrs. Baek declares others like Moo Jin and his sister know the secret. Hyun Soo believes she's hiding something. Mrs. Baek tells him to trust her. Hyun Soo asks why. Mrs. Baek agrees he doesn't have a reason.

Flashback…Hee Sung tells his parents to create the time he'll need by dawdling over the circuit breaker and lighting candles.

Mrs. Baek says she'll light some candles. She leaves Ji Won and Hyun Soo at the table. Ji Won says something isn't right. Mrs. Baek drops items. Hyun Soo goes to her side to help clean up. Mrs. Baek tells Hyun Soo she considered him family.  Hyun Soo says he never worried about her feelings.  The lights come on.

Mrs. Baek returns to the table. Ji Won asks if Mrs. Baek needs to check on her son because of the electrical devices he's hooked to. Mr. Baek returns and says their son has a battery backup.

Hee Sung goes to Hyun Soo's car and plants evidence, hairs of the housekeeper.

Flashback…Hee Sung takes hairs from the housekeeper's dead body.

Hee Sung sprinkles the hair and smiles.

Do Hae Sue (Do Hyun Soo's sister) stares at the necklace that Moo Jin returned to her. She can't believe he kept the token from the High School relationship all these years. She hears a sound outside. She opens the door to investigate. She goes outside to look around. She finds cigarette butts. She looks and sees a man's handprint on her window.

Ji Won and Hyun Soo drive away. Ji Won suggests the police take over the investigation now. Hyun Soo says the housekeeper is the key. He's adamant he must speak with her. He tells Ji Won that he must stop the accomplice from being able to hurt those he loves. Ji Won takes her husband's hand. She tells him her team catch criminals. She believes CEO Yeom is the key that will reveal who the accomplice is. She assures her husband they'll catch CEO Yeom. Hyun Soo smiles at her confidence. Their daughter Baek Eun Ha and Ji Won's mother video calls. They assure her they are on their way to pick her up.

CEO Yeom goes to the hospital where Mr. Baek works. He scoffs that he won't stay out of it.

A woman is led to a room where CEO Yeom waits. CEO Yeom asks if she can be discharged. For the right price. CEO Yeom offers his luxury watch. CEO Yeom smiles and says this woman is his insurance. He tells the woman, Jung Mi Sook, the supposed last victim of Do Min Seok, it has been awhile.

Flashback…Moments when Mr. Park searches for his wife and her killer.

Jung Mi Sook asks CEO Yeom why he called her that name. CEO Yeom smiles.

A man calls Hyun Soo with information about Ji Won and Eun Ha. We know it's Hee Sung. He tells Hyun Soo he's a fan of his art. Hyun Soo demands to know how the man knows about him. The man says Hyun Soo is too sensitive. Hyun Soo realizes his worst nightmare is coming true.

He searches for the phone number and finds it is a payphone. Hyun Soo drives to the payphone. He sees a green car. He calls the owner for the dashcam video. She tells him she's on vacation. Hyun Soo sees the words hide and seek on the payphone. Hyun Soo reads the man's words – I can see you but you can't see me.

Workers find the housekeeper's body.

Hyun Soo realizes the cadence of the caller is the same as the man that left the voice mail for Mrs. Nam. He's distracted and Ji Won snaps him out of it. Eun Ha asks where her father went last night. Ji Won asks where he went. Ji Won gets a phone call reporting a body that was found. She leaves. Hee Sung asks his daughter if she's spoken to a stranger lately. She says no. She recites the stranger danger rules.

Ji Won arrives at the site where the housekeeper was found. Detective Choi Jae Sub takes her to the body's location.

Reporter Kim Moo Jin and his boss meet with a TV producer. He asks Moo Jin to join his panel discussion show. He says Moo Jin's live stream was cool and gathered many views. Moo Jin learns a body minus a fingernail was found.

Officer Im Ho Joon , Detective Choi, and Ji Won watch forensics uncover the body. They don't know who the victim is. They uncover a notebook.

Hae Sue tells her brother last night a man lurked around her apartment during the time he was at the Baek's house. She called the police but nothing can be done at this time. Hyun Soo shares he got a strange call from a man that wasn't Mr. Baek. He admits he believes it might be the same man that left the voice recording for Mrs. Nam. Moo Jin arrives and reports a murder victim minus a fingernail has been found.

The police look at 3 notes the victim wrote to someone (other than Mr. and Mrs. Baek) that was threatening her. Detective Choi believes she was writing about the killer. Ji Won gulps at the mention of Mr. and Mrs. Baek. Officer Im gets the information of the victim's identity. He reports there is a fingerprint they are running. The team is thrilled. Ji Won is uneasy.

Mr. Baek reads the web article of the body that was found. His assistant gives him the list of names of the volunteers for his foundation.

Officer Im and Ji Won visit the forensics officer who explains the fingerprint can't be found in the databases. Ji Won feels uneasy. Detective Choi calls Ji Won to state the victim was the Baek's housekeeper. Ji Won realizes that Hee Sung intended to find the housekeeper last night. She tells Officer Im she needs the car to check something right away.

Hyun Soo is sure that the accomplice called him. He believes the accomplice is obsessed with him. Hae Sue wonders why the accomplice started killing again. Moo Jin guesses the accomplice was in a situation, such as prison, where he couldn't murder. Hyun Soo asks Moo Jin to find out who was put in prison 18 years ago and released. Hyun Soo tells his sister to stay with Moo Jin. He reminds her she saw the accomplice's face at their father's funeral. Hyun Soo declares he's going to meet with CEO Yeom.

CEO Yeom leads Jung Mi Sook to an abandoned house. She asks if her family will come soon. She admits she doesn't remember anything but walking aimlessly. She ended up in the hospital. She thanks CEO Yeom for finding her family. CEO Yeom says he's doing this for money. He tells her she's an important person to many people.

Ji Won arrives home and takes her husband's fingerprint. She compares it to the fingerprint that can't be match in the databases. It matches. She calls her mother to ask her to pick up Eun Ha from school.

Hee Sung tells his mother the housekeeper's body was found and the police will call soon. He tells her to keep up the good work.

Flashback…Hyun Soo picks up the spilled tape and implants his fingerprint on the exposed tape Mrs. Baek purposely dropped.

Hee Sung tells his mother she birthed him, killed him, and brought him back to life. He says she's godlike. Her phone rings.

Hyun Soo waits for the phone call from CEO Yeom.

Flashback…Hae Sue doesn't like Hyun Soo pursuing CEO Yeom. Hyun Soo is sure if he can capture CEO Yeom everything will change.

Hyun Soo calls CEO Yeom's phone. Jung Mi Sook answers. She identifies herself. She asks if Hyun Soo is her family. Hyun Soo asks her to repeat who she is. She does so. Hyun Soo asks where she is. She says she's in a house with trees. CEO Yeom grabs the phone and turns it off. Hyun Soo calls back but to no avail.

Ji Won finds her husband in his shop. She asks where he went last night. She reports the body found was the Baek's housekeeper. Tears fill her eyes as she reports fingerprints from the killer where found. She tells her husband the fingerprints match him. Hyun Soo can't believe it.

Detective Choi interviews Mrs. Baek. She claims the housekeeper wasn't feeling well so she called a cab for her.

Flashback…Dressed in the housekeeper's clothes and hat, Mrs. Baek gets in the cab (per her son's instructions to go to the housekeeper's apartment).

Detective Choi shows Mrs. Baek the notes from the housekeeper's notebook. Detective Choi asks who the culprit could be. Hee Sung watches the conversation from another room. Mrs. Baek admits she can only think of one person that the housekeeper was referencing. Detective Choi calls Officer Im and demands to know where Ji Won is. Team Lead Lee takes the phone and demands that Detective Choi come clean with everything he's been hiding. Team Lead Lee is taken aback by the information. Team Lead Lee asks how he can believe that Ji Won's husband is Hyun Soo. Officer Im overhears and is shocked.

Ji Won offers to take her husband in. Hyun Soo protests he didn't kill the housekeeper. She tells him he's a murder suspect and he's under arrest. She says she must put handcuffs on him. She begs him to cooperate. They both can't believe the moment. Hyun Soo offers his hands to his wife. She puts the handcuffs on him. Hyun Soo believes he sees his father.

Flashback…Do Min Seok tells his son he loved Hyun Soo's mother and though she loved him too. But he was an illusion and she couldn't accept who he really was. So she ran away and abandoned him. He tells his son love betrays. He warns his son not to trust others.

Ji Won looks to where Hyun Soo is staring. She asks him what's wrong. Hyun Soo asks if she trusts him. Hyun Soo demands to know if her gut believes he killed the housekeeper. Hyun Soo declares if she doesn't believe him no one will. Detective Choi calls Ji Won. She tells him she's with her husband at the workshop. She says she'll bring him in. Hyun Soo knocks the phone out of her hand. He spins his wife, puts a hand around her chest, and puts a knife to her neck. He tells her he won't trust anyone ever again.

The police arrive at the workshop. Team Lead Lee, Officer Im, and Detective Choi search but Ji Won is gone. They find the CCTV but it is unplugged. Officer Im finds the last footage where Hyun Soo forces Ji Won to the desk to pull the cables on the CCTV.  Ji Won complies. She stares into the camera as she pulls the last plug. Hyun Soo stares into the camera too.