December 1992. Under mysterious circumstances, a student, Vinca Rockwell, disappears right from the campus of a prestigious lyceum. They say she eloped with Alexis Clément, a teacher with whom she was rumored to be in love. And only a few people know a terrible secret: Vinka could not escape with Clement, because he was killed that same night. May 2017. The Lyceum celebrates its anniversary. Writer Thomas Degale comes to his hometown for a reunion. For 25 years now, he has been haunted by the mystery of the disappearance of Winka, with whom he was in love. And he is also haunted by the pangs of conscience - he knows better than others under what circumstances Clement was killed. And he doesn’t want these circumstances to become known to anyone. On the night of May 13-14, Tom will unravel the mystery that has haunted him for a quarter of a century, albeit at a very high cost.