Recently widowed, Miriam Duffy is a respectable North Shore real estate agent and devoted mother and grandmother. She was thrilled when her younger daughter Ally married her true love, but as time goes by Miriam wonders whether all is well with Ally, as she moves to the country and gradually withdraws, finding excuses every time Miriam offers to visit. Their relationship has always had its ups and downs, and Miriam tries to give her daughter the distance she so clearly wants. But is all as it seems? When the truth of her daughter's situation is revealed, Miriam watches in disbelief as Ally and her children find themselves increasingly vulnerable and cut off from the world. As the situation escalates and the law proves incapable of protecting them, Miriam is faced with an unthinkable decision.