In the vast ocean, there is a luxury cruise ship named "Skeleton", which is world-famous for its luxurious facilities and thoughtful service. However, there is a chilling secret hidden behind this cruise ship. Every seven years, the "Skull" will conduct a special journey around the world, and every such journey will have a series of bizarre events. Passengers and crew members disappear one after another, as if being swallowed by the sea.
Concept: suspense