XOS: A Cry for Help (1984)

Famous drag queen Holly and her scheming sister Beryl (both played by Doug Lucas) battle over the wishes of their recently deceased grandmother, who wants to be buried with her canine companion, Dingo. Defying all health codes and decorum, Holly and her long-suffering manservant hatch a plan to fulfil her grandmother's wishes, while Beryl plots a much darker fate for her deluded sister.