Model for Murder

American sailor David Martens, on shore leave in England, visits his brother Jack's grave. He meets fashion designer Sally Meadows, who by coincidence works with Jack's ex-fiancée, Diana, a model. Diana stumbles on the robbery and Costard kills her. He knocks David unconscious and decides to frame him for the theft, crashing a car with David inside, reporting it stolen and placing a ruby bracelet in David's pocket. The police make David a prime suspect, but he suspects them, using gas, but Sally saves him.