“Green Room” is a violent and dark thriller that emphasizes the absurdity and danger of extremist ideas. Under the guidance of talented director Jeremy Saulnier, the movie provokes the audience to think about the limits of human cruelty and how ordinary events can lead to catastrophic consequences. The rapid development of the plot, the atmosphere of unpredictability and the high level of tension make this movie a real test for the nerves, which makes you think about the thin line between life and death.