Eight-year-old Jess and her little brother were playing at the water's edge when their parents vanished. Years later, Jess has become a locker of doors. Now a lawyer and a mother, she's determined to protect the life she has built around her. But her brother Ro has grown unpredictable, elusive and obsessive. When new evidence suggests that their mother might be alive, Ro reappears, convinced that his sister knows more than she claims. And then bad things start to happen.
Róisín Burns has spent years becoming someone else; her life in New York is built on lies. A figure from her Belfast childhood flashes up on the news; Brian Lonergan has also reinvented himself. He is now a rising politician, but scandal is brewing in Ireland and Róisín knows the truth. Armed with the evidence, she travels back across the Atlantic to hunt him down. But Lonergan is one step ahead... and when Róisín arrives on the island, someone else is waiting for her.