A string of murders occur that mirror those committed by the Whitechapel Ripper. Throughout his experiments with psycho-analysis Dr Pritchard finds a mortal violence of the young female patients in one. Since he delves into the recesses of her mind he finds that Anna is owned by the soul of her deceased father, willing her to perpetrate acts of savagery that is gruesome over which she does not have any control. But the revelation of most is that the identity of her father: Jack the Ripper himself.