Main plot: Modern girl Lin Xia accidentally enters the ancient house in Huangling to shoot a video of exploring the strange house, but is trapped in the reincarnation of time and space. Every time she dies and is reborn, she will unlock memories of her past life - she is the daughter of a tombkeeper whose family was exterminated during the Republic of China, and the strange house is the "memory cage" guarded by her family. In order to break the cycle of reincarnation, she must unite with the descendants of hostile forces to uncover the conspiracy of collusion between the ancient mansion and the modern capital group, but she discovers that her DNA actually contains the key to the secret realm.