Clever little thing

"A taut, powerful mom-noir psychological thriller following a mother who must confront a sudden and terrifying change in her daughter after the abrupt death of their babysitter. Charlotte's daughter Stella is sensitive and brilliant, perhaps even a genius, but a recent change in her behavior has alarmed her parents. Following the sudden death of Stella's babysitter, Blanka, the once disruptive and anti-social child has become docile and agreeable...