Beatriz Costa

In the 1950s, the Santo Inácio Re-education Centre is ruled by a woman who subjects supposedly troubled young people to cruel discipline. Decades later, a group of students enters the abandoned building for a school assignment and awakens a presence that has remained within its walls. In the present day, other young people take shelter from a storm and discover that the house is still haunted by its past. Separated by time, the three groups confront the same evil and must rely on one another to survive.

At Camélias Secondary School, an anonymous message throws the end-of-year dance into chaos. With a secret about to be exposed, two classes are kept in detention until the sender comes forward. As they wait, the students are forced to confront their desires, fears and assumptions about one another. Rivalries and unlikely alliances emerge, turning what began as a punishment into a reckoning with their relationships and identities.

Mari Leila, a seventeen-year-old girl, lives a life of agony, contempt and loneliness. Her unrequited passion for Jadson, a young man who is also seventeen years old, gives rise to a feeling of frustration and resentment. In addition to being bullied at the school where she studies, she lives in an entirely dysfunctional family. After great humiliation, she decides to take revenge on all those who belittled her. Devastating feelings motivate her to commit a series of barbaric crimes.