An idyllic lakeside resort seems like the perfect family vacation for Olivia and Harry Somerville and their three young boys. That is until, returning from a solo hike one morning, Olivia learns that one of her sons has drowned—but not which one. In that moment, she makes a decision that affects her family for the rest of their lives: she runs. Olivia begins a new life in a quiet town, hiding in a lie she tells herself every day: “I have three children.” If she never learns which son drowned, can she convince herself that none of them did? A deep meditation on the nature of loss and the gift of recovery, The Ones We Keep follows the next three decades as a fragmented family picks up the pieces and fights for a future free of grief and full of hope.