Deprived of a normal childhood by her ambitious mother, Lillian Roth becomes a star of Broadway and Hollywood before she is twenty. Shortly before her marriage to her childhood sweetheart, David Tredman, he dies and Lillian takes her first drink of many down the road of becoming an alcoholic.

A scientific experiment involving subjecting a corpse to an extreme charge of electricity accidentally revives an executed criminal and makes him impervious to harm, allowing him to seek revenge on his former partners, and deal similarly with anyone else who gets in his way.

Aliens from Outer Space are slowly switching places with real humans -- one of the first being a young man about to get married. Slowly, his new wife realizes something is wrong, and her suspicions are confirmed when her husband's odd behaviour begins to show up in other townspeople.