Richard Hanney has a rude awakening when a glamorous female spy falls into his bed - with a knife in her back. Having a bit of trouble explaining it all to Scotland Yard, he heads for the hills of Scotland to try to clear his name by locating the spy ring known as The 39 Steps.
A Shakespearian actor starring as Othello opposite his wife finds the character's jealous rage taking over his mind off-stage.
New York's Odyssey Detective Agency is hired by two different clients to follow two women suspected of infidelity. Ladies' man John Russo trails Angela Niotes, the elegant wife of a wealthy Italian industrialist, while Charles Rutledge and Arthur Brodsky follow Dolores Martin, the beautiful young wife of a jealous husband. Their respective cases are complicated when John falls for Angela, and Charles falls for Dolores.
While vacationing without her busy British diplomat husband, a married woman falls for another man.
Georgia Garrett is sent by jealous wife Elvira Kent on an ocean cruise to masquerade as herself while she secretly stays home to catch her husband cheating. Meanwhile equally suspicious husband Michael Kent has sent a private eye on the same cruise to catch his wife cheating. Love and confusion ensues along with plenty of musical numbers.
A married couple, suspecting one another of infidelity, decide to "live separately together."
Lawyer Federico Fendi has reasons to suspect that his fashion model wife Carla is secretly one of Rome's highest paid call-girls.
Flirtatious mix-ups abound when a celebrated novelist tangles with an old flame and her suspicious husband. Will the author's savvy secretary, who's secretly in love with him, save his neck?
