The Kingdom of Back

In 18th-century Europe, Maria Anna "Nannerl" Mozart possesses a musical talent rivaling her younger brother, Wolfgang. Gifted as both a performer and a composer, Nannerl longs for lasting recognition in a world that denies women such a legacy. As her brother's brilliance begins to overshadow her own, her hopes of being remembered for her music diminish.

A mysterious stranger from the Kingdom of Back, a fantastical land born from the siblings' childhood imagination, appears with an offer to grant Nannerl's deepest wish. This bargain promises the immortality she craves, but the cost may be everything she holds dear, including the unbreakable bond with her brother.