F (2010)

Plot

A group of dedicated teachers finds themselves fighting for their lives when a gang of violent youths launches a terrifying attack on their school after hours. As the night unfolds, the educators must band together, using their wits and resources to fend off the relentless assault. With their survival on the line, they confront not only the physical threat but also the emotional toll of their predicament. Tensions rise and alliances are tested, leading to a gripping struggle for safety in a once-familiar environment turned into a battleground.