What if your new teaching job came with a class full of students who never left? This is the supernatural predicament facing Modesto, a man with a unique gift for seeing ghosts, played by Raúl Arévalo. After a career of failed exorcisms, he stumbles upon a last-chance position at a seemingly normal high school, only to discover it is haunted by the spirits of five teenage students who died tragically decades ago. To keep his job and finally find stability, Modesto must use his peculiar talent to help this spectral detention class, led by the rebellious Aura Garrido and the perpetually terrified Jaime Olías, finally graduate and move on to the afterlife. With the skeptical but kind-hearted school psychologist, portrayed by Alexandra Jiménez, growing suspicious of his methods, Modesto navigates a hilarious and heartfelt journey in this charming Spanish comedy directed by Javier Ruiz Caldera. He must bridge the gap between the living and the dead, teaching life lessons to those who have lost their chance to live, all while trying to prevent the school from shutting down for good.