Grace, a kindhearted and happy housewife, is married to Peter, a heart surgeon. One day, Grace suddenly collapsed and while being examined was found to suffer from an enlarged heart. Peter arranged for a heart transplant in China and hired a caregiver Caroline to take care of her. A funny neighbor also moved in next door. The trio soon became great friends. However, the relationship between Grace and Peter gradually moved further and further apart. Peter often shut himself into a room, inactive and indifferent, leading Grace to suspected her husband had become derailed. Moreover, Grace also discovered Peter's involvement in a black market of human organs and at the same time she slipped into a strangely blurred world…