A group of friends leave the city for the weekend and camp near a lake in the middle of the woods. Between the campfire flames and the night sky, tensions begin to emerge.

A violinist is found dead not far from the tomb of DaVinci, in a suspicious position. Captain of the Orléans research section, Alban Dutertre teams up with Officer Bérénice Amarillo. Alban and Bérénice will have to solve the puzzle.

Soan, 20, is a young man like many others but suffers from obsessive disorders. He would like to share his music in the open but the outside world seems hostile to him. Will he be able to overcome his difficulties to realize his artistic dream?