Massie and Joon are two people bonded by marriage. People around them can obviously see that they're such a happy couple. But a terrible accident happened one day when Massie was going home from work. Later that day, his first love, Chan, paid her a visit at the hospital. Little did they know that this accident had a great effect on her that made Chan, to take advantage to be united again with Massie. "I don't know what to do anymore. I was trapped in the past and tied with the present. My head hurts, and my heart aches. I can't afford to see him suffer but I don't want to lose him too. I know I have to choose but what should I follow?"