A series of devastating coincidences, or a mercilessly vicious witch's curse?

Jack doesn't believe in coincidences. But he does believe in her, and the terrible mistake he made the day he crossed her.
The day his life became a living nightmare.

But with the lines so blurred between Jack's terrifying fairy-tale and his own psychological diagnosis, can he now still tell which is the true modern-day horror story, and who is the real villain? Now so deluded, so convinced of the curse, is he truly willing to go to any lengths to stop it, even if that means committing shocking and brutal murder?