When a man enters a bar and, as a gag, offers a skeptic a contract for his soul for one million dollars the skeptic signs it. No one sees the stranger leave, but a coincidence leaves the signer one million dollars from a will. As time goes by, the contract worries away at him distorting his personality from likable to hostile. His employees hate him and his family leave him. One day he receives a visitor and it turns out to be the man with the contract looking for work. The skeptic is so angered that his life has been changed so dramatically by a practical joke that he seizes a heavy candlestick and kills the stranger. Now he feels that he has sold his soul to the Devil in actuality and walks out into the dark for Satan to claim him.
An escaped convict vows to haunt a hermit who has murdered him after ascertaining where his stolen loot was buried. When the police arrive at the hermit's hut they gun him down because, unknown to him, his face is now that of the man he killed.
In 1686 a man asks a woman to marry him and is turned down so he plants evidence to get her condemned as a witch. They pursue her through the forest and the man hurts his leg so they leave him behind to pursue her. She returns to the man to get revenge and says "So you called me a witch? Well, you were close!" as she bares her vampire fangs.
A Martian sleeper agent is eradicated when his usefulness is ended due to incarceration in an asylum. He was committed because he had tried to obtain a passport and could provide no official documentation that he existed.