The Japanese horror film 'Dark Water' directed by Hideo Nakata and based on a short story by Koji Suzuki is released, inspiring later adaptations.
The American remake of the Japanese film 'Dark Water', starring Jennifer Connelly, is released, bringing the story to a Western audience.
Dahlia and her daughter Cecilia move into the run-down apartment in the city after the divorce.
Dahlia notices persistent water leaks and stains on the ceiling of their apartment.
Cecilia finds a mysterious school bag in the apartment's ceiling space, belonging to a missing girl named Natasha.
Dahlia contacts the building superintendent and management to complain about the water leak issue but receives little help.
Cecilia mentions playing with an invisible friend, who is revealed to be the ghost of Natasha.
Dahlia starts to uncover Natasha’s tragic backstory and realizes the haunting is connected to the missing girl.
Dahlia confronts Natasha's abusive father who was responsible for her disappearance and death.
Dahlia faces the spirit of Natasha to release her from suffering and bring peace to the apartment.
After resolving the haunting, Dahlia and Cecilia leave the apartment and start fresh elsewhere.
