Murder Island

9.15pm Channel 4

The series that has given amateur sleuths an immersive experience like no other comes to an end – but with only one team of rookie detectives still on the case, can they catch the killer before time runs out on them?

Making a move, they arrest their two lead suspects, hoping they can break them down in an interview. However, they better hope they have been on the money thus far – especially if they want that £50,000 prize.