Professional horror author and amateur witch Shirley Jackson is trying a spell to cure a case of writer’s block, when she accidentally conjures the spirit of Mary Shelley, author of the pioneering horror novel Frankenstein. Together, the two women set-out to solve the disappearance of a Bennington College co-ed –just as a new dean at the school is looking into Shirley’s husband, a philandering professor who saw the girl last.