The French Sex Murders

A French prostitute turns up dead, and one of her regular clients is convicted of the killing and sentenced to hang. He dies trying to escape custody, but the case does not end there. Soon the witnesses who testified against him are being murdered one after another by a killer in black gloves. Ferdinando Merighi, working under the name F. L. Morris, shoots it in the grainy, low-budget manner of early-70s Italian thrillers.