Agatha Christie: The Pale Horse
Part 2
S1 E2:
Consumed with paranoia, Mark is determined to find a rational explanation, but past and present collide as Mark uncovers the ties between his deceased first wife and a trio of "witches" living at former inn The Pale Horse. If they are truly as powerful as they seem, can they save him from his nightmares before whoever wants him dead catches up with him? How far will he go to save himself?