Scream legends Vincent Price, Peter Lorre and Boris Karloff play rival magicians whose paths cross when Dr. Craven (Price) hears Dr. Bedlo (Lorre) tap-tap-tapping on his windowpane. You see, Bedlo has been turned into a raven by Dr. Scarabus (Karloff) and when transformed back into his old self he vows revenge. There may be little that's recognizable from Edgar Allan Poe's original poem in these sorcerers' shenanigans, but the comical rivalry between these three masters of horror is priceless!