Barney Thomson is a clumsy barber who accidentally stumbles into serial murder, with absurd and gruesome consequences. When a series of events causes Barney's disturbing fantasies to become reality, his boring life suddenly gets complicated, as he enters the macabre and comically absurd world of the serial killer. Complicating matters further, Barney's mother Cemolina has a secret of her own, causing a bloody and darkly hilarious chain of events. While Barney tries to cover his and his mothers tracks, a police inspector fights his own battles within his inept homicide department as he tries to solve the crime of the century. A black comedy of errors unfolds as the police try to capture the killer.