On a morning in late summer Peter Glass arrives on the island, tired, sick and fleeing for his life. He meets Naomi, Zoe, and Jo. In a matter of only a few hours he develops a special friendship with Jo. When Jo is found murdered the following day, Peter is devastated. Into this mix Philip returns with promises to Naomi and Zoe that he will stay with them this time. Even though she has heard all of this before, she still hopes. As the police begin their rather extensive investigation, two states over Margot begins her own investigation of Jo, her former houseguest. What she discovers shatters her to her very core and intertwines the lives of the island dwellers as they seek to make peace with themselves, their lives, and God.