Law & Order: UK - Season 3 Episode 6 Masquerade

The mystery surrounding the stabbing of student, Archie Rahman, has our cops chasing their tails when the only clue they have to go on is a library book checked out on the day of his murder. Two students connected to the book have given an alibi for each other but one of them is lying and it's down to our cops to find out which one. When the perpetrator eventually confesses and claims to have acted in self-defence, Alesha is forced to face past demons. It's a delicate balancing act for James who is tasked not only with prosecuting the offender but also with defending a dead victim. Unless the truth of what happened that day is uncovered, a murderer could walk free or an innocent victim be wrongly convicted.