The secret room
"Yes. I am also thinking about the same thing. How can be there is a secret room here when nobody knew it's existence? Even if Lucas has renovated it later, at least Neil Partick should have known about it. Otherwise how anyone can add some room randomly in a house like this? I don't know why, but feeling something creepy here." Karl replied.
"There are much more things we have to discover than we thought," Charlie said thoughtfully. Karl nodded.
"Boss, here is your laptop." A security guard handed Charlie his laptop. He accepted it and tried to hack the systems present in that house.
Karl left to search for the other rooms. He and the other securities searched for a long time. Mrs Smith's guess was correct. They were able to find out the hidden cameras in each room. Lucas had even installed a microphone in Neil Patrick's room.