As one of the world's preeminent photographers, Sally Mann creates artwork that challenges viewers' values and moral attitudes. Described by Time magazine as "America's greatest photographer," she first came to international prominence in 1992 with Immediate Family, a series of complex and enigmatic pictures of her three children. What Remains--Mann's recent series on the myriad aspects of death and decay--is the subject of this eponymously titled documentary. Filmed at her Virginia farm, Mann is surrounded by her husband and now-grown children, and her willingness to reveal her artistic process allows the viewer to gain exclusive entrance to her world. Never one to compromise, she reflects on her own personal feelings about mortality as she continues to examine the boundaries of contemporary art. Spanning five years, What Remains contains unbridled access to the many stages of Mann's work, and is a rare glimpse of an eloquent and brilliant artist.