The number one sensation with over half a million copies sold in France.

French Riviera, winter 1992. On a freezing night, as her high school campus is engulfed by a snowstorm, 19-year-old Vinca Rockwell runs away with her philosophy teacher with whom she's been having a secret affair. No one will ever see her again.

French Riviera, spring 2017. Formerly inseparable, Fanny, Thomas and Maxime - Vinca's best friends - have not spoken in 25 years. But when they receive a notice from their old school detailing the plans for a new gymnasium and inviting them to a class reunion, they know they must go back one more time. Because there is a body buried in that building...and they're the ones who put it there.