"Can this be evil?"Dr. Jekyll (Spencer Tracy) has a theory that man is two people and sets about experimenting on himself to reveal his darker side, Mr. Hyde. His soon to be father-in-law Sir Charles Emery (Donald Crisp) disapproves of such experiments, but once Jekyll encounters Ivy Peterson (Ingrid Bergman), Mr Hyde is not long in appearing.
Less of a horror, more of a psychological drama about sexual repression.
