An aristocrat short of the readies ,Gontran,is to marry a wealthy girl of common birth;but he has to get rid of his lover ;he 's got a sister, a fifty-something virgin .The plot thickens when two more "sisters" appear and the soon-to-be dad-in-law falls for each of them.Up comes an American cousin ,an Indian ,with his leopard who wanders through the desirable mansion and forces the servant to vacuum with an armor .Add fondness for gastronomy (caviar ,champagne and partridges) .