Dahlia has started a new life. She is recently separated from her husband, has a new job and a new apartment, she's determined to put her estranged relationship behind her and devote herself to raising her daughter, Ceci. Then when her strained separation turns into a bitter custody battle, her situation takes a turn for the worse. Her new apartment seems to have a life of its own. Mysterious noises, persistent leaks of dark water, and strange happenings cause her imagination to run wild. This all leads Dahlia on a puzzling and mystifying pursuit to find out who is behind the endless mind games. She begins to frantically search for the links between the riddles and the dark water seems to close in around her.

Based on the novel "Honoguri mizu no soko kara" by Kôji Suzuki and the film adaptation "Honogurai mizu no soko kara" by Hideo Nakata and Taka Ichise. Special features: Deleted scenes; "The sound of terror: the subliminal soundscapes of 'Dark water'" featurette on the movie's sound design; analyzing 'Dark water' sequences: explore the creation of specific scenes with viewing options; "Beneath the surface:" The making of 'Dark water'" featurette; "An extraordinary ensemble" featurette.