The story of one of the most infamous cases in UK criminal history, that of serial killer Dennis Nilsen. Told through the prism of three men, the series explores the personal and professional consequences of coming into contact with a man like Nilsen.
This tv show contains 11 potentially triggering events.
We see the dog (named Bleep) in Episode 1 before and after Nilsen's arrest, at first they seem fine but a little later they can be heard barking and distressed at the police station. In Episode 2 Nilsen asks after his dog a couple of times and later in the episode it's discovered that Bleep was put to sleep after becoming ill not long after Nilsen's arrest. Nilsen's visibly upset at this when told.