A series of unusual deaths occurred in a century-old villa known as a "ghost house" and became a hot topic on the Internet. In order to help his friends clear away the suspicion, Xu Letian formed a professional investigation team with a group of partners with strange personalities and stayed in the haunted house. As they gradually uncovered the mystery behind the death, they fell into a deadlock of serial killings that was more terrifying than ghosts. Amidst the horror and strangeness, the team frequently encounters 'prank' traps, and the trust and rifts between partners, personal growth, and secret pasts gradually emerge. In the end, they uncover decades-old family secrets that are both hilarious and thrilling.