Girls on Top (1985)

Amanda Ripley, a feminist writer for the women's magazine "Spare Cheeks" lucks into an apartment in Kensington. In order to pay the rent to Lady Carlton, the crazy romance novelist (with a stuffed pet dog named Josephine), who lives downstairs and owns the flat, she has to take in Shelley DuPont, a loud-mouthed American actress; Jennifer Marsh, a retarded friend from childhood; and Candice (pronounced Candeece) Valentine, the "slut" who previously lived there and has no where else to go.