It’s a pretty good conspiracy mystery. "Cynthia" (Jean Lodge) is the heiress at the center of things, and she’s been under the care of her step-father, "Kimber" (Philip Leaver – he had a bit of a resemblance to Francis L. Sullivan), who uses a wheelchair. When Cynthia says she wants to get married, he has to take action, and then she vanishes. Her friend, "Miss Frayne" (Julia Lang), finds the situation perplexing, so…