An executive falls in love with and marries his secretary. However, he soon begins to suspect that she may be a demon who is after possession of his soul.

Katharine Ross repeats her portrayal of Etta Place (from "Butch Cassidy and the Sundance Kid") in this adventure of the fugitive who, alone and desperate following the deaths of Butch and Sundance, seeks help from Pancho Villa in exchange for guns and ammunition.