Madeline is married to Ernest, who was once arch-rival Helen's fiance. After recovering from a mental breakdown, Helen vows to kill Madeline and steal back Ernest. Unfortunately for everyone, the introduction of a magic potion causes things to be a great deal more complicated than a mere murder plot.
A plastic surgeon, romancing a much younger schoolteacher, enlists his loyal assistant to pretend to be his soon to be ex-wife, in order to cover up a careless lie. When more lies backfire, the assistant's kids become involved, and everyone heads off for a weekend in Hawaii that will change all their lives.