When three working-class teens enroll in an exclusive private school in Spain, the clash between them and the wealthy students leads to murder.

In an inaccessible place between the mountains and isolated from the world, a school is located next to an old monastery. The students are rebellious and problematic young people who live under the strict and severe discipline imposed by the center to reintegrate them into society. The surrounding forest is home to ancient legends, threats that are still valid and that will immerse them in terrifying adventures.

Nadia feels conflicted about whether or not to see her long distance boyfriend, Guzmán, when she returns to Spain for her sister's wedding.