Academy Award® winner Jessica Chastain stars in a terrifying trip into the darkening world of a young girl, Bela, who forms a relationship with a disturbing entity in her home who looks uncannily like her own mother. "Other Mommy" proves to be more than a mere figment of the girl's imagination as she becomes a sinister, manipulative presence determined to tear apart Bela's family.

Musim 1・Petinju peraih medali emas, Muhammad Ali (dahulu Cassius Clay) menghadapi ketenaran, keraguan, dan konflik keluarga demi gelar Juara Kelas Berat.