12 Feet Deep (2017)

12 Feet Deep is a nail-biting survival thriller that brings a fresh twist to the trapped-in-a-bad-situation genre. The film follows two sisters who get locked inside an underwater pool, only to discover that their escape is complicated by more than just the lack of air.
With a terrifying creature lurking in the water, they must fight for survival while trying to outsmart both their predicament and the supernatural force threatening them. The film is a high-stakes test of endurance and willpower, with a terrifying and claustrophobic atmosphere that keeps viewers on edge.
Expect a gripping, tension-filled experience with a balance of physical struggle and emotional strain as the sisters attempt to survive and escape their watery prison. The underwater setting adds a unique layer of dread, amplifying the fear of helplessness and the unknown.