The Unraveling (2015)

Plot

Michael, a well-meaning guy grappling with addiction, faces a turning point when he misses his own Las Vegas bachelor party due to drug use. Concerned for his wellbeing, his four close friends stage a surprise camping trip in the California wilderness to help him detox. However, their plans take a dark turn as one by one, his friends are brutally murdered. As Michael struggles with his dwindling drug supply and mounting paranoia, he suspects a vengeful drug dealer is behind the chaos, leading him to confront terrifying truths about his life and relationships.