Daniel and Caroline are closest to each other, twins for whom the rest of the world is always distant. After the death of their mother and their father's remarriage they are sent to separate boarding schools, then a dramatic accident when they are students divides them again. The repercussions last for years, as they cut themselves off from the relatives who raised them, the cousins who adore them. Underneath the stable family life their grandparents worked so hard to establish, run currents of insecurity and restlessness, and a secret only one person is able to uncover.