In 1983, alerted to human remains clogging the plumbing at a North London complex, the police sought out the tenant, Scottish civil servant Dennis Nilsen (David Tennant). They'd be stunned as the unprepossessing man who'd soon become known as the "Muswell Hill Murderer" matter-of-factly confessed to luring and ritually slaying 15 victims since 1978. Absorbing take on one of Britain's most notorious prosecutions co-stars Daniel Mays, Jason Watkins, Ron Cook, Barry Ward. 143 min. Widescreen; Soundtrack: English.