Ten years after a tidal wave destroys a small-town elementary school with all the children inside, a young man builds a mysterious structure out of the school's remains, setting the town aflame with passions long forgotten.
Set in 1978, the film marks the fourth joint effort between Monzón and Jorge Guerricaechevarría, and tells the action-packed, adrenaline-fuelled story of 17-year-old Nacho Cañas, an introverted student who lives in Girona and who is something of a misfit.