Mumsy, Nanny, Sonny, and Girly, released as Girly in North America, is a 1970 British horrorcomedy film. The film originated as a dream project for renowned cinematographerturneddirector Freddie Francis, who wanted the opportunity to direct a film over which he had complete creative control, instead of working on assignment from a studio as was the case with his previous directorial efforts. Francis teamed with writer Brian Comport to build the movie around Oakley Court, which Francis had used for exterior shots in previous films. The script was based on a twoact play by Maisie Mosco entitled Happy Family, which was later adapted into a novella by screenwriter Brian Comport as Mumsy, Nanny, Sonny, and Girly. Though the film fared poorly in British cinemas, it enjoyed a brief but successful run in North America before going on to achieve status as a cult film.
As a part of The Game, the teenaged Sonny and Girly regularly venture to more populated areas, where the pair use Girly to lure men back to the manor house. Once there, the men are dressed like schoolboys and forcibly indoctrinated into The Game, assuming the roles of New Friends. Those who refuse are sent to the Angelsa euphemism for being ritualistically murdered in scenarios built around playground games, which Sonny routinely records on a 16mm movie camera so that the family can later enjoy the resultant snuff film.One night, Girly and Sonny stake out a swinging London party, where they encounter a male prostitute Michael Bryant and his latest client Imogen Hassall. An instant attraction develops between Girly and the man, who convinces his client to accompany the siblings for a night of carousing. Girly and Sonny take the couple to a playground, where they murder the woman by throwing her from a large slide. The next morning, Sonny and Girly convince the hungover man that he murdered the woman after a night of heavy drinking, and convince him to return to the manor with them. The prostituterechristened New Friendis outfitted in schoolboy clothes and subjected to an indeterminate period of torment playing the game, during which he is repeatedly presented with his clients body as a reminder that the family has incriminating information about him. ........
Source: Wikipedia