December in Glendara, Inishowen, and solicitor Benedicta 'Ben' O'Keeffe is working flat out before the holidays. But on a trip to Dublin to visit her parents, she runs into Luke Kirby - the man who killed her sister - freshly released from jail. On the surface he appears remorseful, conciliatory even, but his comment as she walks away makes her realise he is as foul as ever.

Back in Glendara, there is chaos. The Oak pub has burned down and Carole Kearney, the Oak's barmaid, has gone missing. And then, while walking the dog up Sliabh Sneacht, Ben and her partner, Sergeant Tom Molloy, make a gruesome discovery: a body lying face down in the snow.

Who is behind this vicious attack on Glendara and its residents? Ben tries to find answers, but is she the one in danger?