In the French harbor city of Le Havre, fate throws young African refugee Idrissa into the path of Marcel Marx, a well-spoken bohemian who works as a shoe-shiner. With innate optimism and the tireless support of his community, Marcel stands up to officials pursuing the boy for deportation.

William’s great surprise, his cousin Clovis, whom he did not see again since around thirty years, arrives from New York to visit him. Reunion between both men creates one thousand memories: always so collusive, they become fast inseparable, living again, the space of moment, their young years… Only Elizabeth, wife of William, who has just lost her father, does not share their cheerfulness.