Serpentes is a prestigious closed school where children of rich and influential people study. How surprised Eileen, a girl from a simple family, was when she managed to enroll there. Finally, she will be able to escape from a world where her parents do not understand her. "Serpentes" promises Eileen freedom, new friends, wonderful opportunities, and maybe love. But it turns out that the school keeps a dark secret. According to legend, a huge snake used to live in its place. And every fifty years he organizes a hunt... for his students. Is it true what they say about “Serpentes”? Or are these cruel jokes of spoiled children? Eileen has to find out what true evil is...