Movie in the 80's or MAYBE 90's - end of the world - red skys - living in the mall
This is not dawn of the dead, I don't remember any zombies. It was a movie in the 80's most likely, maybe the 90's. I remember a girl walking around the deserted town with few people. I remember the sky being pink or red. They found a mall and decided to stay there. They were having fun until a gang tries to throw them out saying it's their mall. I think they were immune to some sort of disease perhaps? I don't remember how it ends or recall the name of the movie. Help would be much needed and loved, please. :)