Mama is a beautifully shot but conventional horror. An attempted murder-suicide is foiled by a supernatural she-demon who protects and raises two young sisters in the wilderness. When the feral girls are finally found, they’re thrust upon pseudo-stepmom Annabelle (Jessica Chastain), a sarcastic punk rocker who harbours more maternal instinct for her bass than the almost mute orphans. As Annabelle begins to forge a relationship