This 5 telefilm mystery series, "THE SNOOP SISTERS" finds the eccentric elderly mystery writers Gwendolyn and Ernesta SNOOP teaming together to solve real life murders. Their over protective police detective nephew, many times called up on him to aid in his investigations. Their nephew hired an ex-con as their chauffeur to drive them and to protect in New York City. STARRING. HELEN HAYES MILDRED NATWICK This one season telefilm series found both HELEN HAYES and MILDRED NATWICK nominated for the 1974 Emmy Best Actress Award. MILDRED NATWICK received the honor.