Although the process was bumpy, it turned out to be a mistake, which allowed them to return to each other and live a fair life in their respective identities. Three people have also experienced a failed life, and finally met in the crowd and redeemed each other.
Plot:
Top killer Zhou Quan (Andy Lau) and lonely actor Chen (Sean) accidentally switch identities in the bathhouse because of a bar of soap.
After Zhou Quan's amnesia, he lived Chen's life and met Li Xiang (Wan Qian), director of new media. Chen occupied the magpie's nest and became a killer in desperation. A series of ironic stories began, and the two also examined themselves in the communication of life, "changing their lifestyle."