Ten teenagers are invited to an isolated ski training camp deep in the mountains, but for some reason, eleven arrive—one more than expected. When a massive avalanche completely cuts them off from the outside world, the mysterious instructors push the youths to their limits, initiating a cruel psychological experiment of mutual surveillance and control. The camp soon descends into sheer chaos when a horrifying condition is presented: in order for the rest to survive, they must voluntarily choose one person among them to be sacrificed. Directed by Vera Chytilová, a leading figure of the Czechoslovak New Wave, this 1986 film is a highly original sci-fi horror thriller. Through erratic camera work and a bizarre, disorienting sound design, the director vividly conveys the terror and psychological pressure experienced by the characters trapped in the enclosed space. By depicting the…