 Jeffrey and Glenda play two lovers about to embark on a three-day cruise to nowhere. Their plan is to be married on board by the ship s captain. As Glenda is packing to leave, she receives a threatening phone call from her obsessed, former lover who has taken residence just two floors above her apartment. Glenda sneaks upstairs to confront Leo and tell him that it s over. Leo, a high-powered attorney calls a hit-man to have Jeffrey eliminated. Glenda knocks Leo over the head before he can give the hitman a name. Leo is dead. Glenda sneaks back into her apartment, goes off on the cruise with Jeffrey and pretends that all is swell. Leo s partner, Stephen Bessemer, suspects Glenda and follows her to the ship. Bessemer stages a mock trial aboard the ship and cleverly draws a confession from Glenda. Jeffrey, also an attorney, represents Glenda when she is arrested upon arriving on shore. A skeptical district attorney, and the fact that Jeffrey horsewhips the star witness (the hit-man), combine to get Glenda completely off the hook.