The year is 1985 and Denise who is in her early twenties, begins a new life as an WPC for the Met Police, fighting sexism along the way. She is assigned to work with plain clothes Detective Sergeant Ray Deans and, while they attempt to apprehend a suspect, she suffers a knock to the head that sees her in hospital. Whilst there she meets Amy Reid, a fifteen year old girl who’s recently come from a club in Brixton called Subotica. Amy has been violently dragged out of the club by her father but made a run for it. After Amy is later found murdered, Denise is determined to see the culprit brought to justice.