Surge

Taken at face value you could mistake this movie for a Falling Down clone set in the UK, but that's a huge disservice to the excellent job Whishaw does of conveying the build up, and aftermath, of a mental breakdown. Minimal dialog and free-hand camera work make the experience immersive, and Aneil Karia's direction does a great job of keeping the audience slightly detached from the reality going on around the protagonist, just as he feels detached from the world. Highly recommended.