Virginia Wetherell

A Victorian scientist tests a serum that transforms him into a lascivious murderess.

Robert Manning visits the remote country house where his brother Peter was last seen. While his host seems outwardly friendly and his niece more demonstrably so, Robert detects a feeling of menace in the air.

A physician discovers that two children are being kept virtually imprisoned in their house by their father. He investigates, and discovers a web of sex, incest, and Satanic possession.