Ai, a mother, has a relationship with her son Yuta that she can't face to the world or her late husband. Just when he thought they would spend the rest of their lives together, his girlfriend's love falls victim to a stalker. Fearing for their lives due to their extreme behavior, the two leave the town where they are used to living. He escapes and finds some rest at a hot spring inn, but it is only for a short time. The stalker's relentless courtship will stop