Asuka moves into the Kuroyuri apartment complex, without knowing about the mysterious deaths that occurred there 13 years ago. She begins to hear strange sounds of "garigarigari" from the apartment next door. One day, an old man, who lives next door, is found dead. People became aware of his death after his alarm clock continually rang. Since the death, more horrifying incidents occur. With the help of Sasahara, who specializes in cleaning
