This trailer got dark fast. 

– Stars: Isabelle Huppert, Chloe Grace Moretz, and Maika Monroe
– Synopsis: Frances (Chloë Grace Moretz) returns a handbag she finds on the subway to Greta (Isabelle Huppert), an eccentric French piano teacher. Having recently lost her mother, Frances quickly grows closer to widowed Greta. The two become fast friends — but Greta’s maternal charms begin to dissolve and grow increasingly disturbing as Frances discovers that nothing in Greta’s life is what it seems.
– Comes out in March.

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