Thus, all of his detective work that day had been based on a crime he himself had committed. After Lee's guilt was "established", he spiked her bottle of bourbon with sleeping pills and, after she drank it, carried her body into the bathtub and slit her wrists, making it seem like a suicide. Her estate, worth $5 million, therefore went to him and freed him to pursue other romantic interests. Philip is himself guilty of attempted murder, having attempted to kill Clinton with the boat's propellers to prevent his secret from coming out. After Philip deduces Tom's guilt, Tom attempts to strangle him, but their fight is broken up by the arrival of Christine with one of the ship's Italian crewmen. She had listened to Philip and Tom's conversation. Philip then blackmails Tom into financing a film with the money from Lee's estate, employing the various guests in roles related to it but keeping Tom on only in a very minor capacity. The film ends with an encroaching closeup of an ominously silent but enraged Tom.