In London, the snow is falling and Christmas is just around the corner - but Allegra Fisher barely has time to notice. She's pitching for the biggest deal of her career and can't afford to fail. And when she meets attractive stranger, Sam Kemp, on the plane to the meeting, she can't afford to lose her focus either. She learned to shut off her emotions long ago and only her sister, and best friend, Isobel knows why. But when Allegra finds herself up against Sam for the bid, their passion quickly turns sour. In Zermatt in the Swiss Alps, a long-lost mountain hut is discovered in the snow after sixty years and the last person expecting to become involved is Allegra - she hasn't even heard of the woman they found inside. But it soon becomes clear the two women are linked and, as she and Iz travel out to make sense of the mystery, hearts thaw and dark secrets are uncovered, long buried by the snow.