A courier containing methamphetamine breaks the peaceful life of urban white-collar Tan Doudou. The sender is Jin Yuan, her boyfriend who escaped from marriage seven years ago. Doudou escaped on the way to the police station and went straight to the city seaside where the package was sent to look for Jin Yuan. Jin Yuan is a suspect under surveillance by police Qiao Liang and others, and is suspected of using auction transactions to launder money for drug trafficking groups. Doudou couldn't let go of this relationship and made up her mind to lead him out of the darkness and start a new life. In fact, Jin Yuan's true identity is the undercover agent sent by Police Bureau Liu to infiltrate Cai Bingkun, a drug trafficking group.
