Dern's a scientist with a typical home lab who transplants the head of a crazed killer onto the body of a man with the mind of a child. You're thinking that can't be good, and you're right. Whereas The Thing with Two Heads is supposed to be funny (or maybe not; but it is), this one's deadly serious. Deadly to watch, too, though I know those who say it's not all that bad. Don't believe them. Still, you might want to watch it just to compare it with The Thing with Two Heads after you watch that one. Perhaps you can write a small monograph.