- HD 1080
- Runtime: 78m.
- Status: Released
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- Languages: en
- Country: United States of America
- Director: Robert Florey
- Stars: Faye Emerson, Zachary Scott, Richard Erdman, Rosemary DeCamp, Bruce Bennett
- keywords: based on novel or book, fake suicide, film noir, secretary
- Production_studio: Warner Bros. Pictures
- Slogan: A house of shadows... guarding its mysteries from the world. Every room has a secret... every kiss may be the Last!
- The Danger Signal is featured in the top rankings of 1945
- #36 in Top Romance Movies of 1945
- #64 in Top Drama Movies of 1945
- #26 in Top Crime Movies of 1945
After robbing and murdering his married lover and then making her death look like suicide, conniving philanderer Ronnie Mason relocates to Los Angeles. Under a new identity and claiming to be a writer, Ronnie finds lodging at the home of Hilda Fenchurch and her mother. He woos Hilda, knowing she has money, but when he discovers that Hilda's sister, Anne, has just inherited $25,000, he switches his attentions to her.