The Prowler  (1981)

Theatrical Release Information:
The Prowler

In this gory (the special effects are especially well done) slice-n-dicer, the happiness and the sanity of a W.W.II vet is destroyed when he returns home and finds his girl in the arms of another at the town's annual dance. Outraged, he kills both with a pitchfork and the town does not hold the dance again for the next 35 years. The story jumps to the future and the town prepares to hold the dance again. Unfortunately, the vet hears about the dance and comes back to do a little more killing. ~ Sandra Brennan, All Movie Guide