Strange Intruder is a 1956 American film noir crime film directed by Irving Rapper and starring Edmund Purdom, Ida Lupino and Ann Harding. It was based on the 1952 novel The Shades Shall Not Vanish by Helen Fowler. The film was produced by Lindsley Parsons for release by Allied Artists. It was one of a number of noirs featuring Lupino.

Plot

Dying in a Korea prisoner-of-war camp, Adrian Carmichael learns his wife Alice has been unfaithful back home. He makes friend Paul Quentin promise not to let the Carmichaels' children be raised by another man, no matter what.