Harbinger Haunted or Hoax : Season 1 Episode 29

Jac's been hit in the head by a hammer Lady Grantham made Ellia throw. Casey calls out to Ellia, pleading her to fight the spirit possessing her. Lady Grantham laments on the wrong doings her husband and the woman he had cheated on her with had done to her, and tells Casey that's why Ellia has been sentenced to death. Casey tries to reason with the ghost, but in the end her forgiveness to the people who had committed the wrongdoings saves Ellia from death.