Commissaire Capucine Le Tellier is escaping the demands of Paris police work on a well-deserved cruise. Other invitees include her husband, the celebrated restaurant critic, her special agent cousin Jacques, a famed bar owner, and even her boss. The table appears to be set for an affair to remember. Then Natalie, the yacht's cook, is lost overboard. A sudden squall is the assumed cause -- until a bullet hole is discovered in her jacket.