The Boston Strangler

The Boston Strangler is a 1968 American biographical crime thriller film directed by Richard Fleischer, based on the true story of the Boston Strangler and the 1966 non-fiction book The Boston Strangler by Gerold Frank. It stars Tony Curtis as Albert DeSalvo, the man who eventually confessed to being the Strangler, Henry Fonda and George Kennedy as lead investigators John S. Bottomly and Phil DiNatale, and Sally Kellerman as the composite character Dianne Cluny, one of the strangler's surviving victims. The film follows the investigators' path through several leads before introducing the Strangler as a character, with Tony Curtis convincingly portraying DeSalvo's dual personality and menacing presence.