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 own children. In WHAT REMAINS, director Steven Cantor follows the creation of Mann's same-named series - on the myriad aspects of death and decay. Never one to compromise, Mann reflects on her own personal feelings toward mortality as she continues to examine the boundaries of contemporary photography. At her family farm in Virginia, she is surrounded by her husband and now-grown children, and her willingness to reveal her artistic process as it unfolds allows the viewer to gain exclusive entrance to her world. 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.