Wu Bao and Min Changhong are nobodies, yet each conceals a powerful secret identity. One day, they and five other strangers receive mysterious invitations and arrive at a secluded island villa besieged by a raging storm. At midnight, the villa's first corpse appears in a bizarre pose. Wu Bao also discovers that the dead person has a pocket watch just like his, complete with a countdown. After that, a new corpse appears on every hour, and the bodies seem connected by some ingenious logic. Min Changhong finds a crucial detective novel, but the key chapters are missing. Wu Bao discovers that the scenes of the deaths match the novel's draft. As the body count rises, the sixth corpse vanishes from a locked room. The bloody words on the wall, "Only the last survivor is the real culprit," sow distrust among them. Time is running out, with only three hours left on the countdown. Terrified and tense, Wu Bao raises his gun at the mirror, where a sinister smile seems to conceal a plot. In this hostile island villa, they must face the countdown to death and solve the mystery to find the real culprit, all while keeping their secret identities hidden. One careless move could expose who they are and cost them their lives on the island. And even if they manage to find the killer, the sacrifices along the way may make victory taste bitter.
