ITV Hotel Custody Catch up on the ITV Hub Full Series Series 1 available Riveting sneak peek into Grimsby's state-of-the-art police custody centre. This series goes behind the bars, to see en suite cells, room service & 'guests' as detainees. 3 episodes available to watch Share this programme: Copied to clipboard Share on Facebook Share on Twitter Copy link to share Full Series Series 1 1. Halloween Night Thu Thursday 18 Aug It's Halloween at Grimsby's custody facility, and The Joker and Harley Quinn are detained. 2. Full Moon Full House Thu Thursday 25 Aug A full moon stirs up strange behaviour in Grimsby, including a knockout in a police van. Latest 3. Unhappy Birthday Thu Thursday 1 Sept Sergeant Jason can't celebrate his 50th birthday as he must pacify an aggressive woman.