One evening as 12-year-old Mika walks to her friend Aimee's house, she hears a cat yowl and goes to rescue it in front of an abandoned house. She brings the cat home and decides to call her Angel. With Angel safe at Mika's home, strange things start to happen. Someone appears to be watching the house, and a dark presence seems to stalk her in the woods. One day after school Mika arrives home to find that Angel has disappeared. Mika is broken-hearted and worried for the gentle little cat. When Mika and Aimee go out to find Angel, they find her trying to scratch her way out of the house where Mika found her. They free her, but not before Angel's mysterious owner sees them. After a narrow escape, Mika thinks the problem is solved. But then one of her brothers goes missing. Does Mika have the courage to save both her brother and Angel? Or will the darkly gifted, cruel woman claim them all?