Maki, a piano teacher, is attacked by a nightmare whenever her body gets thirsty. This is because three months ago, she was raped and creampied by Hiroshi, a plumber. The only thing that heals Maki is her love for her student, Shunya. As Maki listens to the sound of Shunya's piano, she fantasizes about an affair with him. However, whenever she gets excited, the shadow of that man always appears. At the same time, it brings about a tingling sensation, and tempts Maki to masturbate. Meanwhile, Shunya invites Maki to go to Vienna with him. The truth behind the nightmare is about to be revealed...