Guillermo del Toro presents Mama, a supernatural thriller that tells the haunting tale of two little girls who disappeared into the woods the day that their parents were killed. When they are rescued years later and begin a new life, they find that someone or something still wants to come tuck them in at night.

The story follows twelve-year-old Xiaoxian’s memories of her family and her village. During seven days, the girl witnesses three deaths and two births, including the death of her own mother, who dies giving birth to her fourth sister.

Mrs. Rada the Goat tells her five children to behave while she goes to the fair, and under no circumstances open the door to anyone except her. But the Big Bad Wolf, Kostika (Titi) Suru, and his nephew, the Little Bad Wolf, along with friends Rassul the Lynx and Petrika the Donkey has made a plan to kidnap the children while their mother is away. And when the eldest child, Matei, decides to disobey his mother and visit the fair himself, things start to go badly for the goat-family.