Teenage Couples In The 1950's

In the 1950s, a teenage couple, they were both 18, were driving to couples point. It was a dark night with a dense forest all around them. The parked in a small clearing. They just sit and talk, then they hear a snap in the woods, the girl get worried and the boy calms her down and says it just an animal. Yes it is but not that kind of animal. It was just silent, just the sound of the wind hitting the branches. Then the hood pops open, the couple screams. Later on, the police find out that he pulled out the spark plugs out.
The hood slams shut and a man with a white bag as a mask over his face and blue jeans pants and jacket. He walk over the boys side, who is trying his hardest to drive off. He pulls out a rusty spoon. Breaks the window pulls