After their school collapses, three working-class friends ? Samuel, Nadia and Christian ? are offered scholarships to Las Encinas, the most exclusive private school in Spain. The scholarships are sponsored by the construction company at fault for the schools collapse. At Las Encinas, the three are initially ostracized by wealthy students. As the school year progresses, their lives intertwine in a clash of lifestyles, resentments, envy, and sexual attraction. Through a series of flash-forward scenes of police interrogations, the audience is shown stories of the characters relationships that lead to Marinas murder.