Sorted (2000)

Carl (Matthew Rhys) has travelled from Yorkshire to central London to clear up the details of his brother's death. Although a successful attorney, Carl finds that there is another side to his brother's life, into which he willingly gets pulled. A group of techno junkies accept him into their family, as he is the brother of their late friend. With copious Methylenedioxyamphetamine (MDA) to aide him, Carl enters the underground all-night rave scene in hopes of discovering the truth to his brother's suspicious death.