For Hadley Dunn, life so far has been uneventful - no great loves, no searing losses. But that's before she decides to spend a year studying in the glittering Swiss city of Lausanne, a place that feels alive with promise. Here Hadley meets Kristina, a beautiful but elusive Danish girl, and the two quickly form the strongest of bonds. Yet one November night, as the first snows of winter arrive, tragedy strikes.