I just rewatched this. It's just so sad. And his girlfriend really pissed me off, the way she kept teasing him and then going home to hubby.

I remember how struck I was with the special effects at the time - especially the scene with the kid in the bedroom when the house was on fire. First Johnnie's in the hospital - wham - then he's in the room. I remember how startling and chilling that scene was. Really effective.