Gu Huainan, an ordinary social worker, unexpectedly gets a mysterious pocket watch that can exchange lives, and he begins a fantasy adventure. He was originally a talkative programmer, but because of his pocket watch ability, he was forced to swap bodies with the serial killer "Night Owl". On one side is the daily chatter and talk, on the other side is the life-and-death escape with swords and swords. Gu Huainan must find a solution within seven days, otherwise he will be trapped in the murderer's body forever. As the investigation deepens, he discovers that there is a huge conspiracy spanning time and space hidden behind the pocket watch, and the real mastermind is waiting for an opportunity. In a world where fantasy and reality intersect, Gu Huainan uses his sharp tongue to resolve crises, uses his wisdom to uncover the truth, and finally completes his self-salvation.
