Backstabber (2011) is a Horror film that follows employees attending an extreme team-building function for the weekend find new meaning in teamwork, thinking outside the box, and risk management as they fight for survival from a deranged killer bent on revenge. Backstabber is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 3.0 out of 10 from 2 votes. Fans of horror movies may also want to explore similar titles below.