Actress Natasha Parry is bicycling on the road when she hears a couple of shots, and sees a dark man emerge from the woods to stand by a standing auto. She thinks nothing of it, but in the dressing room that night, her fellow actress tells her the police are looking for witnesses. Miss Parry says she saw nothing useful, but her friend points out that it's always useful for an actress to get her name in the papers. Miss Parry reports the very little she knows to the police, and thinks that will be the end of it... until Superintendent of Police William Hartnell sees the item. With the unknown man having committed two murders, he thinks she's in for it, so he sends down Detective Inspector Edward Underdown to guard her, and possibly catch the dark man before he can kill her.
It's a handsomely shot movie, directed and written by Jeffrey Dell, with an intelligently plausible arc of action that ends in a chase across the seashore in the darkling. It's photographed in long takes by Eric Cross; the lengthening shadows convert a taut policier into a shadowy noir at the end.
