Miranda (Rosamund Pike) is a dedicated nurse, an exquisite cake maker and an impeccable friend. But when she agrees to a blind date and the wrong man comes to her door...her perfect world is shattered by a brutal assault. Even when her attacker William (Shiloh Fernandez) is convicted and locked away for the crime, Miranda can't overcome the fear and trauma enough to put her orderly life back together. Desperate for closure, she reaches out to William--first through letters, then prison visits and slowly builds a relationship with him. But when William is paroled and comes looking for her, Miranda seizes the opportunity to exact revenge.