Duarte, la cinquantaine, non-voyant, se lance à la recherche de son ami capverdien, Leandro. Malgré la chaleur de l’été lisboète, Duarte arpente les rues de son quartier, mais personne ne semble avoir vu ni même connu ce dernier. Son enquête va l'emmener au cœur de la nuit, jusqu'à révéler son secret.

Duarte, a blind man in his 50’s, starts to look for his Cape Verdean friend, Leandro, who mysteriously disappeared. Despite Lisbon’s summer heat, Duarte walks miles in his neighbourhood but no one seems to have seen him, nor remembers him. His quest will eventually lead him to the heart of the night and reveal his secret.