The recommendations for suspense TV series similar to " Remaining Sin " are as follows: 1. The Dark One: This drama tells the story of a police team fighting crime. The plot is tight, the plot is suspense, and the characters are vivid. " Secret Forest ": The drama tells the story of a group of police officers who discover a deeper secret in the process of fighting crime. The plot twists and turns, the relationship between the characters is complicated, and there is a strong sense of suspense. 3." Heartless Mage ": This drama is set in the Tang Dynasty. It tells the story of a young man with mysterious power, who has no intention of entangling with various characters. The plot is compact and full of suspense elements. Sherlock Holmes: This drama is adapted from the novel of the same name by Conan Doyle in England. It tells the story of Holmes and his assistant Watson solving various mysterious cases together. It has a strong sense of reasoning and suspense. I hope these recommendations will suit your taste and help you find a good suspense TV series.