Thirty years ago, João Gilberto, the father of bossa nova, disappeared. He hasn’t been seen in public for decades. Documentarian Georges Gachot heads to Rio de Janeiro to follow the traces of his invisible idol, using the clues left by the German writer Marc Fischer in his book Hobalala.

Following a trail left behind by the elusive artist and bossanova pioneer João Gilberto, this musical detective story is motivated by a profound feeling of longing—a.k.a. saudade. The atmosphere of Rio de Janeiro, the rhythm of its music, and the obsessive search for answers: all are infectious!