As a psychological counselor, Su Wan has been hiding her ability to "empathize" with other people's memory fragments until she was forced to conduct a psychological evaluation for an amnesiac patricide girl. The moment her empathy was triggered, she saw only blood and despair. However, the investigation was hindered, the girl encountered an accident in the detention room, and Su Wan fell into a coma. When she woke up again, she returned to 72 hours ago, and was trapped in a "three-day cycle" that was constantly reset with her ex-boyfriend Lu Chen, the detective in charge of the case. A mysterious voice calling itself "The Judge" told her: prove the girl's innocence, otherwise she will disappear forever. Using loops and empathy, Su Wan dealt with various suspects with hidden agendas, approaching the horrifying truth in the maze of lies and memories. And every cycle of fighting side by side, while uncovering the traumatic past, quietly stitched together the broken trust between her and Lu Chen. This is a race against time for redemption, and it is also a cruel examination of the deepest part of the human heart.
