Lying beside you by Michael Robotham

Twenty years ago, Cyrus Haven’s brother killed their parents and twin sisters. Since then Cyrus has devoted his life as a forensic psychologist to understanding why people commit terrible crimes. Now Elias is being released from his psychiatric hospital, and Cyrus must decide if he’s ready to trust the man who destroyed his childhood. His friend Evie Cormac, who has a gift for knowing when people are lying, isn’t so sure. And as they seek the truth behind a double abduction case, past and present collide – with devastating consequences.