The Unknown Voice

Henry Jekyll is a troubled man. His wife died of pneumonia. He wants his sister-in-law, but her father forbids any contact. And his experiments into the dual nature of man have yielded a personality-splitting drug that he has tested on himself, changing him into an uninhibited brute who seeks violent and undignified pleasures. Jekyll quickly becomes addicted to the sordid freedom induced by the drug. He can commit the most enjoyably revolting deeds, then return to his laboratory and use an antidote to change back to his original form, so that his lofty persona remains untarnished.

On Halloween night, a sorority house is overrun with ghosts, while a vengeful housemother goes on a killing spree.

After the fall of civilization, the few survivors have been driven to cannibalism. A young man must confront a violent tribe that has murdered his father and stolen the medicine that keeps his girlfriend alive.

After the death of his father, a brilliant college student returns to his family home where he learns that the horrors from his childhood aren't as dead and gone as he once thought.