Yeah, Law & Order probably did something along this line, but the McMartin case was real. This false accusation thing exploded in the 1980s and early 1990s:
https://en.wikipedia.org/wiki/Day-care_sex-abuse_hysteria
I was 19 at the rime and had serval work study jobs at the university. one of them was in a day care. the last week of school . I was called on the phone by one of the women I worked with. her daughter had broken her arm and she had to go to the hospital for her daughter. she wanted me to come in for 2 hours and work with the other Male daycare worker. I was really leery of working alone with the other guy because of the accusations on the mc martin case. normally there were about four adults in the center and I was not concerned because I was never alone with the children and if I had to take a kid to the restroom I’m kept the door open. this day it was just me and the other guy along with 12 toddlers. I did not trust the guy and was fearful if he did anything I would be gone after because of him bye the police.. fortunately it was my paranoia but I decided not to work in daycare centers after the school year ended.