A month before her wedding with Ryan (Alex Fong), Po (Charmaine Sheh) got his cell phone and a video of him having an affair with her. At their wedding, Po played the video in public and announced her divorce in revenge against her husband. But the two divorced did not cut off contact. Po rented Ryan's shop to open a store, and Ryan needed his ex-wife to save the situation from time to time to drive away those clingy lovers. Ryan tricked Po into a wife-swapping party under the pretext of finding a boyfriend for his ex-wife, and met Shijie (Him Law) and his wife. Ryan had fun with Shijie's wife Manli, and Shijie was also attracted to Po and launched an offensive. Po's defense was finally broken by Shijie, but their relationship made Ryan jealous. After this incident, Ryan realized that he always cared about Po and tried to win back his lost lover...