Don't Hang Up (2016)

Two teenage pranksters' harmless fun turns into a nightmarish ordeal when a mysterious caller, Mr. Lee, begins tormenting them. With their lives and loved ones at stake, the boys are forced to confront the consequences of their actions. As the night unfolds, secrets are revealed, alliances are tested, and the true extent of Mr. Lee's vendetta becomes chillingly clear. In a race against time, the pranksters must outwit their tormentor before it's too late.