Margaret Thatcher's England. As an unstoppable wave of hardcore movies that depict butchering, sadism, and murder--the infamous video nasties--invades Britain, mousy Enid, a diligent, scissor-happy film censor working at the British Board of Film Classification, is convinced that she is helping society. However, when an extreme horror film inspires a family man to slaughter his wife and children, Enid's repressed childhood trauma emerges from the past, triggering a destructive obsession over her sister Nina's disappearance. Now, Enid is powerless to resist. But just how far down the rabbit hole is she prepared to go to unearth the truth?
—Nick Riganas