Gu Yesen, the elite criminal investigation captain of the police, suffers from severe contact phobia due to his past shadow. Any skin-to-skin contact will cause severe physical discomfort. A series of murders with extremely cruel methods and strange rituals on the scene broke the tranquility of the city. The only clue was a card with a gorgeous "S" printed on it - pointing to the world's top fraudster "Siren". In order to solve the case, he was forced to cooperate with Su Wan, a fraudster who is unpredictable and good at manipulating people's hearts. She took pleasure in challenging his bottom line, getting closer and closer again and again, exhaling like a orchid: "Officer, you need closeness to solve a case..." Until an accident, he found that his insulator was ineffective against her. The cold light of the handcuffs flashed, and he imprisoned her against the wall: "Now, it's your turn to explain why I am immune to you." This dangerous game started with mutual testing and exploitation, and gradually got out of control in the process of hunting down the real murderer, revealing deeper secrets and bonds.
A very recommended book