Marriage Cheat on AllMovie

With a racy title and a South Seas backdrop, producer Thomas Ince put together a solid box-office picture, even if it wasn't exactly a great film. Paul Mayne (Percy Marmont) is a missionary sent to a South Seas island. He doesn't have a lot of luck converting the natives, except for Rosie (Laska Winter), who converts primarily because she is infatuated with him. One day, natives rescue Helen Canfield (Leatrice Joy), who has jumped off the yacht owned by her husband, Bob (Adolphe Menjou). Helen has grown sick of Bob's drunken, womanizing ways and attempted suicide. When she meets the decidedly more chaste Mayne, they fall in love. Rosie becomes jealous and makes sure that Bob is able to locate his lost wife. Because Helen was pregnant when she was rescued and is now a mother, Mayne convinces her to return to Bob. The Canfields' yacht washes ashore during a storm and Mayne tries to rescue them. The couple lands on a reef, and Canfield, who is seriously injured, realizes that he's a cad and that Helen and Mayne really love each other. He allows himself to be washed out to sea so that his wife can be happy with Mayne.