Ann Carroll (Lorna Gray) and her brother Josh (Kirk Alyn of Superman) are given a lift by the mysterious Rufus Blair (Peter Cookson) to a sort of haunted house party on an island that lies past a causeway. However, the owners of the house, Beau and Chattie Richmond (John Hamilton and Vivien Oakland), never sent out any invitations. While the group is pondering who might have invited people to a non-party, one of a pair of twins (Veda Ann Borg) is found murdered. The phone lines are cut and the causeway is cut off due to a storm. Everything seems to be tied into a theft of radium which someone is killing for. The suspense is quite bearable in this otherwise entertaining if distinctly minor Monogram mystery. The cast is game enough, with Willie Best [My Little Margie] making the best impression (despite the old-fashioned nature of his acting) as the funny and likable manservant Woodrow, along with Peter Cookson [Shadow of Suspicion], who proves once again that he was a criminally underutilized leading man. Roy Barcroft and Grant Withers are also in the cast. Howard Bretherton directed a number of serials, Charlie Chan movies, and Frankie Darro features.
Verdict: The girl who dared what? **1/2 out of 4.