Veterinarian Clara Benning, whose face was disfigured as a result of an accident as a child, hopes to hide from the whole world in a remote English village. However, terrible events occur here - poisonous snakes are discovered in houses, people die. Clara becomes the main suspect and is forced to begin her own investigation. The secrets of the past are intertwined into a “snake ball”, and it will not be easy to unravel it.