Currently in previews, Terrence McNally's Mothers and Sons is a new play about the evolving definition of family and the healing power of forgiveness. Tyne Daly stars as Katharine Gerard, a woman who, even though twenty years have passed, still cannot come to terms with her son's death. When she seeks out his former lover Cal Porter (Frederick Weller) and meets his partner (Bobby Steggert) and young son (Grayson Taylor), she wonders what her own son's life could have been had he lived. Here, McNally and cast are joined by director Sheryl Kaller to chat about the show. See details about the show's "$30 Under 30" night.