As an unrelenting heatwave beats down, the residents of Horse's Arse—aka Hampstead New Town, north Manchester—are reaching melting point. The Park Royal Mafia, a group of local villains, is under new management and open for the business of mindless violence again. Unfortunately their antics have attracted the attention of a psychotic Turkish gangster, who's decided the Mafia is just what he needs to pull himself to the top of the criminal heap. And wading into the middle of it are the Grim Brothers, Psycho, Pizza—Horse's Arse's fineset, trying to keep a lid on things in their own inimitable style. As the whole bunch get hot under the collar, it can only end in blood, (a lot of) sweat, and tears.