Infamous burglar “The Bat” commits a daring jewelry theft despite heavy police presence. Soon after, a bank theft occurs, which may be the work of the criminal as well. Meanwhile, Cornelia Van Gorder has various people arrive at her old mansion, including her niece, Dale, a bank employee, and police detective Anderson. When guests start turning up dead, Cornelia begins to suspect that The Bat may be lurking around the estate. Hybrid horror, mystery, comedy

When half-breed Indian Yaqui Joe (Burt Reynolds) robs an Arizona bank, he is pursued by dogged lawman Lyedecker (Jim Brown). When Lyedecker meets beautiful Yaqui freedom fighter Sarita (Raquel Welch) he begins to question his allegiances.