Engineer Roger Ellis is able to see striking doom in form of a black phantom. With a sorcerer's help he captures the phantom and imprisons it. But the horrible creature can free itself and strikes again.; When Professor Niles unearths the remains of a Neanderthal man, the whole town suddenly regresses into inexplicable caveman behavior.; An adventurous photographer wants to take pictures of a mysterious, forbidden place called "City of the Dead" amidst a desert. He forces his entry by poisoning himself, but takes too high a dose and actually belongs in the realm of the dead.; Art painter Leo Main is threatened by his landlady Mrs. Tyran. He paints a murder scene involving her and an ominous fat man. The fat man becomes reality, though, and starts developing a will of his own.