The Brotherhood V: Alumni (2009)

Plot

A year has passed since a cruel prom prank ended in tragedy, and the elite group of Sunnydale High’s students is called back for an unexpected reunion. What begins as a nostalgic gathering quickly spirals into a nightmare when they realize a vengeful killer is stalking them. As secrets unravel and paranoia sets in, the once-celebrated alumni must confront their past actions to survive the night. Tensions rise as friendships fracture and the true nature of their bond is put to the ultimate test.