A girl who halfheartedly tries to be part of the "in crowd" of her school meets a rebel who teaches her a more devious way to play social politics: by killing the popular kids.

Now confined to a mental hospital, young Kirsty insists her supposedly dead father is actually stuck in Hell following his wife’s betrayal. Few believe the young woman’s lurid stories aside from the thrill-seeking Dr. Channard. Kirsty is undeterred and, with the help of a fellow patient, heads to Hell for a rescue.

Modelling themselves after an idyllic cookie-cutter suburban 1950s family, a colony of insects move from South America into the United States with the intent of getting access to the nation's nuclear resources.