The daughter of Jack the Ripper is traumatised by witnessing her mother's murder and grows up to become a sexually repressed killer, prowling her father's old stomping ground. Only a psychiatrist seems able to help her overcome her murderous impulses - but his motives soon slip from the professional to something more carnal in nature. Hammer horror, starring Angharad Rees, Eric Porter and Dora Bryan.

A series of murders occur that mirror those committed by the Whitechapel Ripper. Through his experiments with psychoanalysis Dr Pritchard discovers a deadly violence in one of his young female patients. As he delves into the recesses of her mind he uncovers that Anna is possessed by her dead father's spirit, willing her to commit acts of gruesome savagery over which she has no control. But the most chilling revelation of all is the identity of her father: Jack the Ripper himself.