The Brennans - parents, Finn and Bridget, and their sons, Jarrah and Toby - have made a sea change, from chilly Hobart to subtropical Murwillumbah. Feeling like foreigners in this land of sun and surf, they're still adjusting to work, school, and life in a sprawling purple weatherboard, when one morning, tragedy strikes.In the devastating aftermath, the questions fly. What really happened? And who's to blame?