Four friends decide to go out of town and spend the weekend there, thus abstracting themselves from the constant routine of civilization and forgetting about the problems that surround them a little. They decide to rent a house near a beautiful picturesque lake. The day begins wonderfully, the girls admire the beauty of nature in a relaxed atmosphere, engage in various activities and allow themselves to completely relax and not think about anything, thereby gaining maximum pleasure. However, in the evening, when it starts to get dark, the situation in the house changes dramatically. Not where there are some men, completely dressed in scary costumes. They just break into this house and start mocking the main characters, torturing them and literally driving them insane. Gradually, the situation changes and the victims involuntarily think through a plan for bloody revenge.