Based on true events and starring Tony Curtis. Serious approach and rather studious look at the strangler case. Reasonably acted but rather flatly directed resulting in a one dimensional feel and understanding of the whole case. Uninspired and cliched in parts, it should have been a taut, nailbiting thriller. Instead the focus is on how one man can harbour two such murderous personalities and how a "regular family man" can also be such a marauding demon.

Far, far superior and truly chilling because of the accuracy of its depiction - and British Serial Killer, Dennis Nilsen's favourite movie - is William Wyler's The Collector. A superior analysis and portrayal altogether.