“The Passionate” has some odd black comedy moments such as the opening when Lieutenant Al Wheeler goes to the morgue at midnight to investigate a missing corpse. Mortician Charlie Katz is really upset because he has a responsibility even if Wheeler does not appreciate it and found one of the stiffs, a dame, blonde and she was some looker, gone.
But, the plot thickens, as they say, when Wheeler picks up the morgue phone and hears a male voice telling Wheeler that he knows where the missing corpse could be found – at television studio KVNW. At the studio, Wheeler finds that they are about to run a horror movie, the Stepchild of Frankenstein. And the assistant host of the late night horror show is none other than Penelope Calthorpe, one of the Calthorpe sisters, famous for their street theater. There is a coffin in the studio and Wheeler is assured that it is just a prop. Famous last words. The coffin is not empty, though, and its occupant is not going anywhere anytime soon.
Meanwhile, an employee found the missing blonde in the prop room. “It looked like Charlie Katz wasn’t going to be lonely any more.” Wheeler receives a second anonymous call, identifying the corpse in the coffin as Howard Davis, a pro tennis player who happens to be Penelope’s ex-husband. Wheeler soon finds that, between the Calthorpe sisters, Penelope and Prudence, their ex-husbands, and their ex-husband’s ex-wives, there were plenty of suspects and plenty of animosity.