Michael Caine plays a man on holiday in Rio with his teenage daughter Nikki, his best friend Victor (Joseph Bologna) and Victor's sexy and flirtatious daughter (Michelle Johnson). When Caine falls for the daughter, Jennifer, the pair embark on a secret, if slightly one-sided relationship. Johnson's father is furious when he finds out about an 'older man' in his daughter's life, and asks Caine to help him track down her lover. Loosely based on the French farce Un moment d'égarement.