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A popular singer, Marian Washburn (Maureen O'Hara), suddenly and unexplainably loses her voice, causing a shake-up at the club where she works. Her worried but loyal piano player, Luke Jordan (Melvyn Douglas), helps to promote a new, younger singer, Susan Caldwell (Gloria Grahame), to temporarily replace Marian. Susan finds some early acclaim but decides to leave the club after a few performances. Soon after Susan quits, she is gunned down, and Marian quickly becomes a suspect. Wikipedia