In the summer of 1945, as World War II is ending, Abby Ryan is studying to become a nun. On the serene grounds of the convent in Kettle Falls, Washington, she is assaulted by trespassers and rescued by Sinclair Mellington, a handsome army captain attending a retreat at the institution.
Decades later, in the fall of 2008, Isaiah Mellington, a middle-aged unemployed attorney, receives a letter written by his now deceased father asking him to wrap up loose ends in the wake of Sister Abby's passing--loose ends that turn out to be connected to a life she lived outside the convent.
As Abby's death hijacks the lives of three families, betrayal encroaches upon Isaiah as well. And a half century of lies unravels, shredding the very fabric of everything he's ever known.