After three years together, Claire Wynn is finally ready to marry Gavin Mercer. But at their engagement celebration, Gavin arrives with Natalie Hewitt, his supposedly helpless junior, and expects Claire to make room for her. Natalie takes Claire’s seat, slips into the family photo, and crosses one boundary after another while Gavin keeps defending her. That is when Claire realizes this is not the first time Natalie has tried to push her out of her own relationship. Instead of fighting for a man who refuses to choose her, Claire calls off the engagement. But with years of carefully planted provocations about to come to light, walking away is only the beginning.