In an era where the supernatural and the earthly intersect, a young man named Ning Caichen embarks on a journey to the capital to take his imperial exam. However, his journey turns into a nightmare when he encounters a trapped spirit, the beautiful and enigmatic Nie Xiaoqian, who is forced to serve a malevolent master, using her allure to ensnare men and thus feed the demons.
Despite the warnings and the danger their relationship poses, Ning and Nie develop a profound love that defies the laws of their world. As they both struggle for a future together, they find themselves caught in a whirlwind of emotions and difficult choices. Ning, with the help of a wise monk, seeks ways to free Nie from the curse that binds her to her life as a dark being.
As the story progresses, the duality between light and darkness becomes more prominent. Ning's life turns into a game of strategy where he must confront supernatural forces as well as his own fear of losing her.
The film weaves elements of romance, adventure, and horror, taking the audience on an emotional journey that challenges the norms of love and death. In the end, the connection between Ning and Nie invites reflection: how far would you go for love, even if it means defying fate itself?