the next day, carl and brad arrive seeking an account book which hammer had mixed up with johnny's diary. carl goes looking for helen but is killed by a booby-trapped door that causes the entire boat to explode. hammer had saved himself by jumping overboard and after he gets to the dock he realises that helen is still alive when he sees a boat with her name on it. he realises now that the account book and diary were false clues and that johnny and carl were stealing money from the telethon bid on which they were working prior to their deaths. helen has instigated all the murders in revenge for her treatment.