For five friends barreling down a mountain road toward a remote cabin, college is over, adulthood looms, and one last summer of decadence awaits. But when a stranger stricken with a flesh-eating virus shows up at their door, the infection spreads, terror erupts, and friend is pitted against friend in a paranoid nightmare of contagion and survival. Eli Roth’s directorial debut — presented for the first time in blood-spattered 4K — is a landmark shocker with a wicked strain of humor and a deliriously unpredictable finale…and a grisly cure for the summertime blues.