Detective Conan: Strategy Above the Depths(2005)

Detective Conan: Strategy Above the Depths is an animated mystery film that connects a maritime disaster from fifteen years past to a present-day murder. When engineer Hideto Yashiro dies in a suspicious car accident, the case seems closed—until detective Kogorou Mouri, his daughter Ran, and the young prodigy Conan Edogawa board the luxury liner St. Aphrodite for a vacation. What begins as a relaxing voyage turns sinister when Sonoko Suzuki vanishes during a game of hide-and-seek. As Conan investigates, he uncovers a web linking Yashiro's death to the cruise ship disaster that claimed countless lives years before. The mystery deepens aboard the elegant vessel, where hidden motives and long-buried secrets threaten to surface.