Jenk and Slezak, two killers on the run, hide in a house where a chemist is experimenting with “synthetic protoplasm” – thus creating aggressive body parts which attack any intruder.; Sadistic Nazi colonel kills his prisoners of war single-handedly. The dead return to take revenge.; Exterminator George Harris is troubled with his profession. All the killing gets to him. Things turn for the worse when mice start stalking him and he mysteriously begins to shrink.