Private detective Kristof Kryszinski must be on the run from the Albanian drug mafia to voluntarily leave his beloved Ruhr area and sign on with the luxury liner Equinox. Among the rich and beautiful on board, Kryszinski and his buddy Jochen take on the role of ship detectives, a job that initially puts them in a festive mood. But shortly after setting sail, the fun comes to an end. The first steward is found beheaded. And he won't be the only corpse on board the Equinox.