The Unfaithful is a 1947 American murder mystery film noir directed by Vincent Sherman and starring Ann Sheridan, Lew Ayres and Zachary Scott.

Art shop owner, Martin Barrow, contacts Chris's lawyer and good friend Larry Hannaford.

Barrow convinces her to create more anguish for Chris by relaying this information to Bob Hunter, thinking also that the wronged husband would pay to avoid scandal.

Thomas Pryor of The New York Times gave the film a mixed review: "The Warner Brothers have turned out a better than average murder mystery in The Unfaithful, but they have badly over-weighted with melodramatics the things they obviously wanted to say about a pressing social problem.

The new picture at the Strand stabs and jabs like a hit-and-run prizefighter at the subject of hasty divorces and the dangerous consequences to society of this ill conceived cure all for marital difficulties, but it never gets across a telling dramatic punch.