As Australian cinema broke through to international audiences in the 1970s through respected art house films like Peter Weir's "Picnic At Hanging Rock," a new underground of low-budget exploitation filmmakers were turning out considerably less highbrow fare. Documentary filmmaker Mark Hartley explores this unbridled era of sex and violence, complete with clips from some of the scene's most outrageous flicks and interviews with the renegade filmmakers themselves.

Peter and Carla, a couple whose marriage is faltering, decide to go on a camping weekend. When they become lost, the pair sets up camp on a remote beach that doesn't seem to be on any map. At first the trip is the romantic getaway they imagined – then slowly things begin to go wrong. After Peter disrespects the unspoiled habitat, it seems as if the surroundings are exacting revenge on the couple, as insects, animals, and then nature itself become the enemy.