Des

In 1983, a grisly discovery alerts police to a serial killer. DI Peter Jay is stunned when meek civil servant Dennis Nilsen freely admits to killing multiple men.

As the police question Des, forces from on high threaten to bring their case to a close. Meanwhile, biographer Brian Masters seeks to analyze why Des did what he did.

As the trial approaches, Jay and Brian reflect on their involvement in the investigation and the impact they’ve had on Des.