After School Massacre (originally titled Teacher's Day) is a 2014 American slasher film written and directed by Jared Masters. The film stars Nikole Howell, Lindsay Lamb, Andrew Phillips, Courtney Rood, Danika Galindo, Yasmine Soofi, and Savannah Matlow. After School Massacre follows the story of a high school teacher who goes on a killing spree after being fired, stalking his former female students at their slumber party for revenge against all those who wronged him.

Plot

Two high school students, Devon (Nikole Howell) and Jess Perkins (Savannah Matlow), have a crush on their teacher Ty Anderson (Bruce Kade), and they convince him to accept their friend requests on Facebook. Later, they report Anderson to Principal Wheatley (Art Roberts), saying that he made sexual comments to them on Facebook. Wheatley promptly fires Anderson, who snaps and kills Wheatley and his secretary Linda (Mindy Robinson) in furious response; he then overhears the girls discussing how they are going to a slumber party, so he decides to go there to take revenge on them for setting him up. Devon meets Jess and her older sister Dee Dee (Simone Wasserman) at the party, along with their other friends Erin (Courtney Rood), Alex (Yasmine Soofi), Steph (Danika Galindo), and Laura (Lindsay Lamb). Nerds Max (Lonnie Alcide Gardner) and Joel (Nick Sinise) also arrive to spy on the girls.