Hands of the Ripper (1971)
A series of murders occur that mirror those committed by the Whitechapel Ripper. Through his experiments with early psychoanalysis Dr John Pritchard discovers a deadly violence in one of his young female patients. As he delves into the recesses of her schizophrenic 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.
Film Fact: the part of the Ripper is uncreditted.