Christian Alvart directed Case 39, with a screenplay by Ray Wright. The cast includes Renee Zellwegger, Jodelle Ferland, Ian McShane, and Bradley Cooper; Michl Britsch composed the music, and Hagen Bodanski handled the cinematography. This film joins numerous others featuring demonic or disturbed children, and it lingered unreleased for several years before appearing around 2009. Despite receiving largely unfavorable reactions initially, I’m glad to say that it functions effectively within its horror niche. It isn't a forgotten masterpiece by any stretch, but it delivers. The plot centers on Zellwegger as Emily Jenkins, a social worker who, after saving young Lilly Sullivan from her parents’ instability, provides temporary foster care—a decision she quickly questions. While leaning more toward the supernatural than many similar movies, German director Alvart adheres to the standard storyline of films about troubled children. Lillith—the name is hard to miss!—quietly inserts herself into Emily’s life and the lives of those close to her, after which unsettling events begin to occur. After carefully establishing the atmosphere in the first half, Alvart seems to enjoy unleashing demonic mayhem, with young Ferland delivering a remarkably strong performance as Lilly. The scares and psychological distress are well-constructed, leading up to an appropriately absurd and chaotic ending. The runtime of almost two hours feels excessive, it occasionally borders on ridiculousness, and it relies heavily on familiar tropes. Nevertheless, memorable scenes, a powerful portrayal by the child actor, and the overall enjoyment as a chilling thriller elevate it slightly above mediocrity. I’d give it a 6/10.

Source on TMDB