John Matley is heavily in debt to gamblers and his wealthy father is going to disinherit him. When the father is murdered, suspicion naturally falls on John Matley. However, the real killer is using a death ray that can fry a victim's brains from three hundred feet away!
An old man waiting to die in a locked room is killed with a poker, while an organ grinder plays outside. Then, Simon Prentice is found with a long, thin knife in his back...while an organ grinder plays. The woman suspected of the crimes is locked in the room with her uncle's corpse!.
A bloody story about a gambler who murders three times and then discovers they weren't really necessary. He strangles his partner with a piano wire, bludgeons his partner's brother, and then stabs his wife to death!
A theatrical director tells a strange story to a pair of reporters. The ghost of a long-dead actor named John Carter strangles the night watchman at a theatre named in his honor. He then kills twice more!
"This is a tale of greed and hate...and a thing that was created by the belief of 10 million radio listeners. For if the story had not been told, the thing would never have risen out of the swamp...to reach out with blood-red tentacles and twice do murder."