A man known as the "Murderer" wanders through the woods. The sound of water flowing deep underground fills his head. Within the sound of the subterranean water flowing through the "id", the realm of the subconscious mind, the "Voice of Someone" becomes audible. The man emerging from the woods is captivated by that voice. Before long, incidents gradually begin to occur that affect the frugal occupants of a steel factory, until one morning they discover the body of the head of the factory, who has been beaten to death. The perpetrator is a female employee of the factory. In fact, it is HER voice that had beckoned the murderer there. Around that time, as if summoned by destiny, the ex-Detective that has been pursuing the murder finally arrives in the factory town. The murderer and the woman realize that they share a powerful connection, making it clear that there are mysterious forces at work. This psychological thriller examines the id — the subconscious force that taps our deepest desires -- and asks what happens when it can’t be controlled.