An army operation to take down an IRA cell goes badly wrong, resulting in the death of a young boy. Twelve years later, and his vengeful sister "Niamh" (Lara Lemon) is old enough to set off in pursuit of the soldier who, accidentally, shot him. That takes us to the remote French Alps where he now lives in recluse, with his blind violin-playing mother, trying even now to come to terms with what he has done. She finds…