When Nick Wychwood loses his wife Elise in a shocking accident, he is left to bring up their daughter Lucy on his own. A move from Cornwall to the Cotswolds should give them the fresh start that they need, a tranquil setting where they can put tragedy behind them and forge new friendships.    But Lucy, as a teenager, is fragile, vulnerable, easily led… She is shy and hesitant. When someone offers her their shoulder, the warmth and understanding, even love, that she thinks she needs, she is accepts, unquestioningly.   But this ‘someone’ is an online monster; dangerous, deceptive, manipulative – and patiently laying a devastating trap…