Hangman's Hill

Private investigator Tara arrives in Polná to hunt for a murderer who is targeting unfaithful men and women. Someone here is killing with extreme brutality, leaving a dead crow by the body as a calling card. The locals still believe in superstitions, modern-day witches hold sabbaths on Gallows Hill, and evil is dangerously close. How are the murders connected to an old story in which a rich farmer's son betrayed a beautiful witch, who then forced him to commit suicide?