On his way to see his son, Sam, for the first time in years, Henri Skinner steps into the road and collides with oncoming traffic. In a nearby hospital he floats, comatose, between dreams, reliving his childhood and the secrets that made him run away in the first place. After the accident, Sam – a 13-year-old synesthete with an IQ of 144 – waits by his father s bedside every day. There he meets Eddie Tomlin, a woman forced to confront her love for Henri after all these years, and twelve-year-old Madelyn Zeidler, a coma patient like Henri. As these four very different individuals fight, they are bound together inextricably, facing the ravages of loss and first love side by side.