premise: Lost Souls is a 1992 horror novel by American writer Poppy Z. Brite, his first one. It is the only novel-length adventure of Brite's 'Steve and Ghost' characters, popularized in numerous short stories. The novel is an extended version of the short story "The Seed of Lost Souls".
hypothesis: The movie was written by a woman.
reason: It isn't known the gender of the person who wrote the movie.