Joan Crawford stars as Monica Rivers, a domineering circus owner/ringmaster with one thing on her mind: money. When a killing spree breaks out, and members of the troupe start dropping one by one, everybody becomes a suspect (including Ms. Rivers). There are one or two very entertaining moments, and for an obviously low-budget production there are enough famous faces in it (Joan Crawford, Diana Dors) to save it from the clutches of obscurity. However, for a horror/slasher film, I didn't find it particularly scary or suspenseful. If, like me, you enjoyed the recent BBC television series, Psychoville, I suspect that you'll enjoy this film too.