In Brazil, a diamond prospector sets out in pursuit of a thief who has robbed him and left him for dead. Along the way, he meets one of his adversary's former mistresses and tries to extract some information from her.

Young lovers Orfeu and Eurydice run through the favelas of Rio during Carnaval, on the lam from a hitman dressed like Death and Orfeu's vengeful fiancée Mira and passing between moments of fantasy and stark reality. This impressionistic retelling of the Greek legend of Orpheus and Eurydice introduced bossa nova to the world with its soundtrack by young Brazilian composers Luiz Bonfá and Antonio Carlos Jobim.