It tells the story of Liu Lu (played by Liu Lu), a sika deer breeder who is immersed in the pain of the past. Because of an encounter with her old classmate Ma Hai (played by Wang Ziyi), she accidentally learns that there is another self in the parallel world. She tries to catchThis opportunity to reconcile with oneself, family, and the world is a story of finding self-salvation at the expense of unraveling the scars from twenty years ago.