Private detective Lin Yan, in order to investigate the bizarre suicide of his friend, was forced to get involved in an urban ghost story game called "Ten Days of Reincarnation". Every ten days, all participants must solve a logically rigorous death puzzle designed by the mysterious power "Collector". If they fail, they will be wiped out, and if they succeed, they can enter the next round with their memories. When Lin Yan discovers that the truth about his friend's death and the ultimate secret of the game are closely connected with his lost childhood memories, he must complete a fatal counterattack that spans reality and illusion in the countdown to endless reincarnation.