Loki brings the trajectory of Arnaldo Baptista from childhood, passing through the most successful phase as leader of the Mutantes, marriage to singer Rita Lee and then separation. He also goes through the depression that devastated his life after the group ended and that led him to attempt suicide, his solo career, rapprochement with his brother and member of the Mutantes, Sérgio Dias, culminating in the band's return in 2006.

A documentary on the amazing Brazilian music movement known as Tropicália.

A host of personalities reminisce about the life and work of songwriter, lawyer, and congressman Humberto Teixeira — aka "Baião Doctor" — the author of such classic Brazilian popular songs as "Asa Branca". A musical film about the baião, a movement in Brazilian music in the 1940s and 1950s that was later snowed under by samba and bossa nova.