By a hot summer day on the lakeshore, three siblings face death for the first time through their contact with nature.

After a bank job goes badly wrong, three desperate criminals take a young woman and a father and child hostage - it's the beginning of a frantic and violent road trip that not all of them will survive.

1978. In a small village in Bas-St-Laurent, Guy’s tragic death is a shock for the Leblanc family. For many years, the real cause of his death is kept hidden from some members of the family, including his son David. The latter in turn starts his own family with his wife Marie. He lovingly raises his children Laurence and Frédéric, but deep within him harbours a persistent melancholy.