Café Flesh (1982)

In the aftermath of nuclear apocalypse, 99% of the survivors are Sex Negatives - they become violently ill if they attempt it. The minority Sex Positives engage in carnal theater for the entertainment of the Negatives at Cafe Flesh. Everyone is excited about the arrival at the club of the famous Positive Johnny Rico, and one Negative woman is beginning to question her negativeness as she and her boyfriend grow more distant from each other.