Law & Order: UK - Season 3, Episode 03: Defence

Trailer

Two workers and a customer in a vintage clothes shop are brutally murdered with a bayonet. The fourth,surviving,victim identifies the killer as John Smith,an educated but homeless ex-military man,who is arrested with the weapon on him. It is found out that he was previously charged with stalking a young woman but sloppy prosecution led to the case's collapse. He is also a law graduate and defends himself,despite a history of mental instability vouched for by his sister,Patricia. In court he claims that he was not himself that day and therefore not the killer. Steel brings in Patricia and uses Smith's paranoia to get his conviction.

Genre: Drama, Mystery, Crime