Re-examining one of the biggest murder investigations in Metropolitan Police history. Did prejudice lead to multiple missed opportunities to catch serial killer Dennis Nilsen?

Ch1. Missing
As Nilsen's crimes are discovered, the truth about his victims reveals prejudice and multiple missed opportunities to catch a murderous predator.

Ch2. Survivors
Examining Nilsen's high-stakes trial and the dramatic emergence of witnesses to his crimes. The cases of survivors reveal how chances to catch Nilsen years earlier were missed.

Ch3. Forgotten
Sentenced to life, the media focus on Nilsen intensifies, with books and even a TV slot. His victims, including those unidentified, are ignored, leaving families without answers.