A dawn raid on the home of a suspected rapist leads to a chilling discovery, a disturbing collection hidden under floorboards. Narey is terrified at the potential scale of what they've found and of what brutalities it may signal. When the photographs are ruled inadmissible as evidence and the man walks free from court, Narey knows she's let down the victim she'd promised to protect and a monster is back on the streets. Tony Winter's young family is under threat from internet trolls and he is determined to protect them whatever the cost. He and Narey are in a race against time to find the unknown victims of the photographer's lens - before he strikes again.