When elderly pensioner Umberto Domenico Ferrari returns to his boarding house from a protest calling for a hike in old-age pensions, his landlady demands her rent by the end of the month or he and his small dog will be turned out onto the street.
The 13-year-old boys Léo and Rémis have a close friendship at school and in the flower fields where they and their parents pick the harvest for home. When schoolmates shoot a wedge into the relationship, the consequences are fatal.
Several friends travel to Sweden to study as anthropologists a summer festival that is held every ninety years in the remote hometown of one of them. What begins as a dream vacation in a place where the sun never sets, gradually turns into a dark nightmare as the mysterious inhabitants invite them to participate in their disturbing festive activities.