When the Rain Falls on the Unnamed Lake

Adapted from the novel of the same title by Jiang Nan. The story is set in a parallel universe, at Bianjing University in the Jiayou reign of the Song Dynasty. Four first-year undergraduates — Guo Jing, Ling Huchong, Yang Kang and Duan Yu — are assigned to the same dormitory. Fate, like an invisible thread, has tied their lives together.

A physics professor, a sci-fi writer and a young writer from parallel universes find that their lives are entangled. She thinks she is a replicant of her real self, she is the imprisoned soul in her novel, and she is the mastermind behind all. This is an author's movie about authors, this is a science fiction movie about science fiction, and this is a movie about movies. What kind of existence is our world, and whether our life is existence or nothingness?