Name That Trauma :: Reader Rodrigo T. on a Town Turned Green

Good morning!

I was wondering if you know the title of a horror movie in the 1980s?

Description: There were a couple student classmates that were in love, but there is a problem. An evil woman that was obsessed with him, but he doesn't love her, so, the evil woman took in revenge against the girl — killing her, stabbing a knife in her back in the car in front of her boyfriend.

There are more details about that movie. The town was under a curse because the people became greenish skin. The boy cursed her before her girlfriend had died. I remember when he said, "Damn you are!! Damn you are!!" Finally, she laughed with an evil laughing like this "Hahaahhaahah-haahhaahhahaha!!!!!!!!" and then he said, "Oh God someone help me."

Do you remember that movie? Yes/No?

Please tell me the title of that horror movie.

Also I am not sure but the evil woman was so cute; Caucasian, she had a long black hair, and she dressed in black.

Thanks again,

— Rodrigo T.