Ibiza: Seven Nights from £99 (2001)

During a Spanish vacation, Oldham friends Rick and Shaun are filming for their friend Paul when they encounter Alex, a sophisticated local. Alex invites them to his villa, where they experience drugs and encounters with two Scottish women. The next morning, the group wakes to find someone missing and bloodstains. They clean up the scene, but as they prepare to leave, Alex's friend Thomas arrives. They discover three bodies, and Thomas manipulates Rick and Shaun into believing the other committed murder under the influence. Now distrustful of each other, the boys must grapple with paranoia and question everything they witness.