Episodes The Nilsen Files Series Premiere (S1EP1 BBC Two Mon 24 Jan 2022) Published 4 months ago on January 22, 2022 As Nilsen’s crimes are discovered, the truth about his victims reveals prejudice and multiple missed opportunities to catch a murderous predator. Airdate: Monday 24 January 2022 at 9.00pm on BBC Two. Season 1 Episode 1 Share on Twitter Share on Facebook Share on Pinterest Share on Reddit Share on SMS BBCThe Nilson FilesTrue CrimeUK TV Advertisement You may like The Flying Archaeologist – Stonehenge: The Missing Link (S1EP1 BBC Four Mon 23 May 2022) Home and Away: Episode 7799 (S35EP84 Channel 7 Mon 23 May 2022) Neighbours: 23/5/22 (Channel 5 Mon 23 May 2022) Home and Away: 23/5/22 (Channel 5 Mon 23 May 2022) The Block: Big Renovation Challenge Episode 11 (More 4 Mon 23 May 2022) Couples Therapy Season 2 Episode 9 (S2EP9 BBC Two Mon 23 May 2022)