Passenger 23.
Five years ago Martin Schwarz, a police psychologist, lost his wife and son. It happened during a holiday on the cruise ship Sultan of the Seas, and no one could tell him what exactly had happened. Martin has been a mental wreck ever since, biding his time with suicide missions as an undercover agent. During one of his operations he gets a call from a strange old lady, who introduces herself as a Thriller author. She wants him to come on board of the Sultan of the Seas immediately and claims to have proof regarding the disappearance of this family. Martin had sworn himself never to set foot on a ship again, but he returns to the ship and finds out that several weeks ago a girl gone missing on the Sultan reappeared – carrying his son’s teddy bear …
