Monique is married to a gambling wastrel. When she refuses to pay his debts, he leaves for France to raise money from an estate. Meanwhile, his brother is released from prison and turns up to see his fiancee, Monique's maid. They scheme to have brother impersonate wastrel so that Monique can get a divorce, but the wastrel returns at the very hour the lawyer is due. Monique tries to drug her husband but imbibes the potion herself. Fighting for a gun, the wastrel is killed. When Monique comes to and the police appear, they think she is loco: there is no body, the maid is now a nurse, and the lawyer a psychiatrist. Is Monique insane and will they do her in to get her money? No, Monique is really a secret agent sent to trap the wastrel in his fifth widowhood. This time the law catches wastrel, lawyer and maid combined.