Filth - Region 1

James McAvoy plays Detective Sergeant Bruce Robertson, a scheming, manipulative, misanthropic man who spends his time indulging in drugs, alcohol, sexually abusive relationships, and "the games" cruel plots and systematic bullying of his coworkers and friends. While working on the murder case of a Japanese student, he starts coming unhinged, slowly losing his grip on reality and suffering from a series of increasingly severe hallucinations as he desperately tries to hold his life together.