Viewers expressed their outrage at the way in which the Florida adolescent, now known as Lisa Noland, was failed by the people around her, since they originally didn't believe her story.
Lisa was the only one of Long's sufferers to survive after he embarked in an eight-month murder spree from March 1984, and murdered at least 10 girls.
After she had been released by her kidnapper, the adolescent helped catch the killer, who was executed for his crimes in May 2019 following 34 years on death row.
The film, first released in 2018 about the Lifetime channel in the US, shot up to become the UK's present No 1 film on Neftlix following being inserted to the streaming service earlier this week.
In one scene, Lisa tried to spell out the torture she'd experienced at the hands of Extended to 2 female police officers, who appeared to not believe a word she is saying.
The adolescent's own grandma even found the story far-fetched.
Lisa suffered sexual and psychological abuse at the hands of her grandmother's boyfriend, that resulted in her feeling suicidal before her abduction - but her horrifying ordeal gave her a new determination to live.
He trapped her in his flat and repeatedly raped her for 26 hours.
To escape, Lisa remained calm and made up a story she had been the sole caregiver to an ailing parent to try to elicit sympathy from Long, and it worked and he introduced her, according to Tampa Bay Times.