A three part BBC mini-series explores the harrowing experiences of teenage girls at the hands of Pakistani men in Rochdale.
The story is based on the true events of victims of grooming and sexual abuse in Rochdale.
In the first episode new to the area, Holly is keen to make friends but finds herself drawn into a frightening world she is unable to escape - a world all too familiar to sexual health worker Sara.
As her relationship with her family fractures, Holly finds the courage to speak out, but will her nightmare finally end?
The series opener was aired tonight at 9pm and will run for the next two days.
Here is some of the reaction online tonight.
Describing an underage girl as a prostitute 😐 #threegirls— 50ShadesOfBeige (@Iram_Ramzan) May 16, 2017
#ThreeGirls is so difficult to watch. These young girls are vulnerable and scared and they're being let down by the authorities— Izzy (@izmills) May 16, 2017
#threegirls It is NOT because they were Muslim. It is because they were perverts. Do not let those that tweet hatred twist this.— G H Neale (@GHNeale) May 16, 2017
As horrible as it is to watch, CSE is a real problem and it's important it's being shown and talked about on mainstream TV #threegirls— Natasha Lainsbury (@TashLainsbury) May 16, 2017
25 minutes in, but #threegirls has given me faith in the BBC to tackle the most difficult subjects. This could even be a watershed moment.— Joe Shalam (@JoeShalam) May 16, 2017
If you are angry at what's happening in #ThreeGirls consider supporting your local Rape Crisis Centre or Domestic Abuse Service.— Yvie (@YvieLFN) May 16, 2017
#threegirls why isnt a woman pc rape officer interviewing Holly? ..it would be with more sensitivity ffs ..good drama tho— karen lloyd (@showgirl65) May 16, 2017