A better than average drama written by Frederick Knott, the author of "Dial M for Murder" and "Wait Until Dark", this shows Terence Fisher expertly handling a story of crime, lust and death during his efficient early phase working for Hammer Films, five years before the big success of "The Curse of Frankenstein". Although the main character is John Harman, the mature manager of a London bookstore (played by Irish actor George Brent), two young actors play more appealing characters who are key components of the plot and feature: Diana Dors and Peter Reynolds. A ravishing blonde beauty at 20, Dors had had a dozen of minor screen roles before being introduced in this production as Ruby Bruce, a sexy worker who turns everything around her upside down after she gets mixed up with Jeff Hart, a seductive ex-con played by Reynolds. Under Jeff's influence Ruby blackmails Harman, next a couple of corpses complicate the proceedings, soon Harman is accused of murder and then his secretary (American actress Marguerite Chapman) helps to solve the mystery, putting her life in danger. Peter Reynolds is fine, but he does not have much to do as the villain with sinister charm. It is Diana Dors who has more room for creating a real character. She was a very good actress, and although comparisons were often made with Marilyn Monroe, on the acting level she surpassed her American colleague: here she convincingly mixes naive wickedness with vulnerability, making the film not only the account of Harman's story but the drama of a confused working girl as well.
