简介：A homeroom teacher held 29 students hostage as vengeance for the mysterious death of their roommate. Their act takes a toll on life and sorrow. This bloodthirsty lesson brings up the raw characters of human beings.
Oskar de la Fuente/伊利娅·盖尔拉/Dèlia Brufau/Jordi Aguilar/Gabriel Guevara/Jaime Wang/María Mercado/Víctor Pérez/Miriam Cabeza/Ainara Pérez/Hilary Yanela/Unai Arana/