Fen works in a bookshop & is devoted to her young son Connor but she keeps herself to herself. Haunted by guilt & a terrible secret Fen lives a compromised life isolated from her family far from home & too afraid of the past to risk becoming close to anyone. She is constantly looking over her shoulder knowing that one day the truth will catch up with her. Sean on the other hand is enjoying a seemingly perfect life. He has a successful career lives in his dream home & adores his beautiful wife Belle & their six-year-old daughter Amy. That is until the day Belle announces she has found someone else & wants Sean to move out. Circumstance throws Fen & Sean together. Slowly their quiet friendship turns into something much deeper & the joy they find in one another eventually gives them the confidence to trust & love again. But will the past tear them apart just as they find happiness?