Barney’s mundane life is about to be transformed when he inadvertently stumbles into the world of the serial killer. As he clumsily tries to cover his tracks, he finds himself on the run from the bearish Detective Inspector Holdall (Winstone).

With his sanity threatening to unravel, Barney fatefully turns to his domineering, emasculating mother, the formidable Glaswegian ‘good-time girl’, Cemolina (Thompson). There’s no turning back now as Barney’s path may yet be littered with more murderous consequences.