As the film opens prepare to see Barbara Stanwyck punched 11 or 12 times in the face by three mooks in an alley, each bruising face-breaking blow leaving a great ouch across the style. It has to be one of the more terrifying noir beatings.
This leads to a hospital managed by a cynical hard smoking medical stoic played by John Hoyt, and the whole flashback, fading screen, voiceover here-is-how-it happened commences, and Double Indemnity style, the story unravels, although it ain't such a hot story.