 In return for an antidote, Markoff intends to exact more than his pound of flesh by extorting a fortune from Lawrence and demanding the hand of the musician's pretty daughter Patricia (Wanda McKay).Lowly PRC hadn't released a horror picture in nearly 17 months, having spent most of 1943 substantially expanding their capabilities by purchasing the bankrupt Chadwick Studio (a poverty row operation that specialized in renting stages and production equipment to low-budget producers along Gower) for $305,000.While critics, what few that would review a PRC release, complained about the film's lack of action, production values were noted to be somewhat higher than earlier releases.