'You have to search for the key to the song of your life and when you find it, don't let it go.' Solomon lives for adventures with his cousin Ze, his dog Duke and above all, to sing and play the piano, for which he has a rare gift. But when life in the idyllic mountains of the Serra dos Órgãos is shattered by injustice, the family is uprooted to the slums of Rio de Janeiro. Growing up on her family's vast cattle ranch in Montana, Keira Kavanagh dreams of finding the love of her life - the key to her song. But the untimely deaths of two people close to her leave her in turmoil, questioning her romantic notions. Born on the same day, thousands of miles apart, will these two young lives find a love that overcomes their suffering, discovering who they are meant to be, and each other?