Dark Intruder

In 1890 San Francisco, a series of brutal murders unfolds, prompting the involvement of playboy detective Brett Kingsford, who possesses a secret crime lab, an extensive collection of occult texts, and a valuable dwarf assistant. As his friend Robert, set to marry Evelyn, begins experiencing mysterious trance-like episodes, he becomes a prime suspect due to his connections to the victims. However, the killer's distinctive growl and use of deadly, claw-like weapons contradict Robert's character, leaving the detective to search for other suspects.