Wu Bao and Min Changhong have humble identities, but they each hide their unknown and powerful identities. Once, they and five other strangers received a mysterious invitation and came to an isolated island villa surrounded by violent storms. At midnight, the first corpse appeared in the villa. The deceased's posture was strange. Wu Bao also discovered that the deceased had the same pocket watch with a countdown as his own. After that, there are new corpses at every hour, and there seems to be a subtle logic between the corpses. Min Changhong found a key detective novel but was missing a key chapter. Wu Bao found that the death scene matched the draft of the novel. As the number of corpses increased, the sixth corpse disappeared in the secret room. The words "The last survivor is the real murderer" written in blood on the wall made everyone suspicious of each other. Time was running out, with only three hours left on the countdown. Wu Bao raised his gun in front of the mirror in fear and nervousness, and the strange smile in the mirror seemed to hide a conspiracy. In this hostile island villa, they not only have to face the countdown to death, but also have to solve the mystery and find the real murderer. At the same time, they have to hide their identities. If they are not careful, not only will their identities be exposed, but they will also die on the island. Even if they successfully find the murderer, the sacrifices in the process may make the victory bitter.
