Kai, a reclusive young man who believes he's being filmed by aliens, forms an unexpected bond with his new roommate, Xiaole. When Xiaole mysteriously vanishes, Kai must piece together the puzzle of his lover, uncovering a portrait both familiar and strange.
Xu Tian was a 21-years-old young man. He carried on the revolutionary predecessors' belief, and to fulfill their entrustment, he went all the way from southeast Asia to Shanghai to deliver the materials to the Communist International. In this arduous journey, he went through hardships and setbacks with Sun, Yu Yixiu, Zhang Jiayi, and many others. Finally, he managed to finish the task. The smiles on their faces reflected their firm belief and their hopes for a bright future.