When Dan and Grace Hearn sell their haulage business in Derbyshire and retire to Anglesey, North Wales, their lives seem complete. Taking life easier and enjoying the beautiful island was a dream come true, especially for Grace who spent many happy childhood holidays there. Their world is shattered when Gabriel, one of their twin sons, inexplicably takes his own life on New Year’s Eve 2010. He fails to arrive at the family party being held at their luxury farmhouse on the outskirts of Beaumaris. Trying to establish why their son took his life, Dan conducts his own investigations...