Ile de Groix, France. A frozen island. This tiny isle off the coast of Brittany is the scene of a murder left shrouded in mystery and grief. Adam Killian's study has been left intact since his death - the perfect state for Enzo Macleod's forensic investigation. Killian's widow is still hoping; the first suspect is still hiding; and the treacherous island itself still has a revelation for Enzo.