Liu Haiyang and Song Chao were inseparable during their time at the Police Academy. However, when Liu Haiyang sees his close friend flee the scene after his father is killed, he sets off on a relentless pursuit for vengeance. His journey takes him from Harbin to Hainan, where he discovers a shocking affair between his wife, Chu Jie, and his best friend. Unbeknownst to them, they are all unwitting participants in a larger, more malevolent scheme.