A mysterious package filled with methamphetamine turns Tan Dou Dou (Pan Zhi Lin)’s tranquil life as a white collar worker upside down. The sender is her ex-fiancé Jin Yuan (Luo Jin), who run away seven years ago. Dou Dou wants to bring the package to the police station, but then decides to go look for Jin Yuan instead. Turns out that Jin Yuan is suspected by the police to be involved in drug trafficking and money laundering. Dou Dou, who still harbors feelings for him, is dead set to help him get out of the dark and start afresh. Jin Yuan, however, is actually a spy sent by the police in order to bring down the drug trafficking organization.
