When a mysterious box arrives at his door, a doctor and father is forced to participate in a twisted killing game, or risk losing everything. Nathaniel Kelly, Lan Cheng-Lung, Sam Hayden-Smith, Jenny Zhou, Han Pengyi, Paul He, Deng JiaJia, Cathy Moriarty, Arash Mokhtar, Junning Zhang, Vasylevska Yana, Yuanyuan Cheng, Wenjun Li, Liang Wang, Maksim V. Manylov Added on Netflix 2020-08-22.