Friends Mari and Phyllis (hey, we're in the ‘70s, okay?) go out to celebrate Mari’s 17th birthday. But while in town, they encounter a group of dangerous cons who take them hostage, torture them, rape them and finally kill them in the woods.
Tired after their killing business, the cons take refuge in a nearby house, masquerading as salesmen. But they’re unaware that this house belongs to Mari's parents. When her parents discover what has happened, they set about getting bloody retribution for their dead daughter.
Of all the luck! If only the cons had gone to the house nextdoor. The revenge that Marie’s parents exact on them is the thing of nightmares – penises chewed off, gutting by chainsaw…