Mortal Vengeance

Set within the sun-drenched halls of Excelsior Academy, an elite Jesuit boarding school in Santo Domingo, the story follows a close-knit group of students pushed to their breaking point under the rule of Profesora Lourdes, a sadistic and emotionally abusive teacher whose authority is absolute.

The Catalyst: When Alex, a charismatic but deeply manipulative teenager, orchestrates a plan to poison Lourdes as an act of vigilante justice, the students believe they are reclaiming power from an institution that has failed them.

The Nightmare: The retaliation does not end there. What begins as a seemingly contained act of revenge detonates into terror when a masked killer known as El Grim Cojuelo emerges—a silent, merciless figure drawn from Dominican folklore, fusing the Grim Reaper with carnival myth, and targeting those connected to the crime.

The Mystery: As the body count rises, the surviving students are forced to confront their own complicity, the school’s systemic neglect, and a chilling question: is El Grim Cojuelo a human murderer exploiting fear—or a supernatural force summoned by guilt, silence, and long-buried injustice?