Closed fights without rules are not for the weak. The best of the best fight there, bones crack there, blood flows there. Only the strongest wins. But even in such an environment, professional fighter Alexey Sorokin remains a normal person. However, one “beautiful” day everything changes dramatically. Sorokin's best friend suddenly turns into a bloodthirsty beast and literally tears his rivals to pieces. And he publicly challenges Alexei himself to a fight to the death. You can't refuse the fight, but it won't be easy to defeat this beast...