All in Her Head

Alison is more alone than she's ever been. She is convinced that her ex-husband Jack is following her. She is certain she recognises the strange woman who keeps approaching her in the canteen. She knows she has a good reason to be afraid. She just can't remember why. Then the mention of one name turns her life upside down. Alison feels like she's losing her mind...but it could just lead her to the truth.