Dahlia Williams (played by Jennifer Connelly) is a recently divorced mother who moves into a run-down apartment building on Roosevelt Island with her young daughter, Ceci (played by Ariel Gade). The apartment is plagued by leaks and other maintenance issues, and Dahlia begins to suspect that something sinister is lurking within the building.
As Dahlia struggles to adjust to her new life as a single mother and deal with her deteriorating living conditions, she becomes increasingly disturbed by strange occurrences in the apartment. Mysterious water stains appear on the ceiling, and she hears strange noises coming from the apartment above hers, which is supposedly abandoned.
Dahlia’s paranoia grows as she uncovers the building’s dark history, including a young girl named Natasha Rimsky who disappeared years earlier. She becomes convinced that Natasha’s spirit is haunting the building and is responsible for the eerie occurrences.
Meanwhile, Dahlia becomes embroiled in a bitter custody battle with her ex-husband, Kyle (played by Dougray Scott), over their daughter Ceci. Kyle accuses Dahlia of being an unfit mother and seeks to gain full custody of Ceci.
In the climax of the film, Dahlia discovers the truth about Natasha’s disappearance and her connection to the building. She learns that Natasha was murdered by her own mother, who buried her body in the building’s water tank.
As Dahlia confronts the ghost of Natasha, she realizes that she must protect her daughter from suffering the same fate. With Ceci’s help, Dahlia uncovers Natasha’s remains and confronts her own inner demons.
In the end, Dahlia triumphs over the darkness that has haunted her and her daughter, finding closure and a sense of peace. She reunites with Ceci and vows to start fresh, leaving behind the horrors of their past and embracing a new beginning.
Overall, “Dark Water” is a chilling and atmospheric horror film that explores themes of motherhood, loss, and the supernatural. With its tense atmosphere, compelling storyline, and powerful performances, it offers a haunting and unforgettable movie experience for fans of the genre.