A typhoon hit the island, blocking traffic between the island and the outside world, and damaging communication lines. A young man dressed in strange clothes appeared on the island with a sharp harpoon. At this time, someone discovered the body of the island boatman being nailed to the groundInside a wooden crate, the islanders were in a state of panic while each harboring their own ulterior motives. Every four hours thereafter, a body nailed to the crate appeared on the island. Intern police officer Wang Zixuan, who was on vacation and returning to the island, began investigating the caseThrough tracking and investigation, a mysterious case that occurred many years ago has gradually surfaced...