Shen Yu is a top escape room designer, known for his rigorous logic and perfect details. One day, his former partner was found dead mysteriously at home. The police determined it to be suicide based on the perfect airtight environment and various signs at the scene. However, only Shen Yu saw something was wrong - the layout of the entire "suicide" scene was exactly the same as his secret room design plan that had never been made public and pursued "perfect logic". The murderer is using his own work to challenge him intellectually. In order to wash away his inner sense of "original sin" and find out the truth, Shen Yu had to use the perspective of a "screenwriter" to solve the death mystery set by another "screenwriter". He and Lin Qingxue, a cold-hearted female detective who insists on procedural justice, went from constant conflicts to joining forces to chase the murderer, and step by step they walked into the murderer's carefully constructed trap full of misleading and lies. The highlight is that this is not only the police arresting criminals, but also a peak showdown between one designer and another "designer" about logic, psychology and control.
