films include themes of vengeance and retribution with a heroine who take revenge against the drug or prostitution syndicates responsible for her incarceration. In the film Female Convict 701: Scorpion, the audience "can see a story of Japanese women in captivity, with lots of very life-like scenes" because Japanese directors desire to produce "natural looking stories" to enhance the reality of the situation. Many Japanese films contain these "natural looking stories" because they were based on life events, such as the internment camps. Sub-genres The "jungle prison" subgenre has films set in fictional Banana republic nations run by corrupt dictators in either South America or Southeast Asia. The majority of these were filmed in the Philippines where production costs are low. Here, a group of nubile prisoners are herded together in a stockade prison camp and used as slave labor, doing tasks such as cutting sugar cane or digging in a quarry. These films usually involve a revolution subplot with political prisoners freed by other inmates in a climactic raid where the villains are killed. Actress Pam Grier starred in several Filipino jungle films such as Roger Corman's The Big Doll House and its sequel The Big Bird Cage, plus Women in Cages, and Black Mama White Mama (story co-written by Jonathan Demme). Sweet Sugar (1972) starred Phyllis Davis, Caged Heat 2: Stripped of Freedom (1994) featured Jewel Shepard as an undercover agent. The especially brutal Escape from Hell, a.k.a. Escape (1979) and its sequel Hotel Paradise came from Italy. Jesus Franco's Sadomania features scenes such as gladiator fights to the death and prisoners hunted like animals in an alligator-infested swamp. Related genres Nunsploitation The Nunsploitation (nun exploitation) subgenre emerged at the same time as the WiP film and is composed of the same basic elements. The stories are set in isolated convents that resemble prisons where sexually-repressed nuns are driven to rampant lesbianism and perversity. The Mother Superior is usually a cruel and corrupt warden-like martinet. The nuns are treated like convicts, with rule-breakers subjected to whippings or Inquisition-style tortures. The added element of religious guilt entails scenes of masochism and self-flagellation. Mixed-genre prison films The WiP film has also expanded into other areas and film genres such as horror and science fiction. A notable European horror-hybrid is the 1969 Spanish film, The House That Screamed. A psycho-killer lurks in a house for wayward girls run by a harsh