Line Of Duty ABC, 9.20pm

CRIME

Intriguing, ambiguous and definitely a whole lot of crazy, Lineof Duty’s season four finishes in triumph. Pushing the bounds of imagination and expertly throwing in red herrings and unexpected turns, fans will not be disappointed by tonight’s conclusion. But they may need a breather before bed to digest it in all its madcap glory. With Nick (Lee Ingleby) facing lengthy questioning over the murder, AC-12 remain convinced of Roz’s (the brilliant Thandie Newton, pictured) involvement. As the facts slowly emerge, the officers risk everything to bring the guilty party to justice. With questions still lurking, we will await season five, which has been confirmed.