Years ago, the high school seniors created the Lair, a social network which, with time, became a place for gossip and bullying. Everyone in school joins it, but few find it to be a safe space. Rai, a fifteen-year-old on a wheelchair, is not interested in it, and neither is his friend Tea. He only wants to attend the after-school photography workshop, although he ends up in the theatre class, just like Tea, with Aitor, Lidia and Yaiza, other students that hardly know each other. They all attend the theatre class during the first term, but they don’t really become friends and, when holidays arrive, they all part ways.

But then, something happens on The Lair. First, a picture of Tea is posted. Then, screenshots of Whatsapp conversations between Aitor and Yaiza. And later on, another picture of Lidia. Rai is not attacked, although he thinks that it is because the person behind this doesn’t dare to pick on the boy on the wheelchair.

Nevertheless, it’s clear that someone has chosen the five of them, so they come together in order to find out who it is. While they develop their investigations, true friendship and other feelings will arise among the five teenagers, although none of them is prepared to find out the truth.