Tabitha, once the placid, gentle and devoted pet, adopts all the characteristics of a ferocious, wild animal following the murder of her mistress. The three guilty people are all trapped by the cat's power and each will come to untimely deaths of horrific proportions without anyone being able to solve the mystery that surrounds their brutal death.

Ex-army private Randle stands to receive a substantial inheritance from his uncle if he can prove he is of sound mind. However, his devious cousin tries to grab the money by having Randle committed to a psychiatric home.

Archie Rice, an old-time British vaudeville performer sinking into final defeat, schemes to stay in show business.