A police pursuit in Beigang, Taiwan, exposes a cycle of unresolved karma across three lifetimes. As officer Fu Hao hunts the ruthless killer Black Pig, an encounter with a mysterious Taoist priest draws him into a realm between worlds. A compassionate nurse, Huang Qiqi, becomes caught in the unfolding events and discovers her connection to both men in a previous life. Against the rituals of Mazu’s birthday, old grievances return, forcing them to confront their attachments and choose between revenge and reconciliation.