Auguste, a somewhat simple-minded Provençal fisherman, loves and admires Mireille. This concerns only Maurice, son of an important wholesaler, whom scruples do not stifle. Seduced and abandoned, Mireille moves Auguste who tries to mend his poor happiness. The local priest, with wise words, leads Mireille to offer her hand to Auguste.

Auguste, naif pecheur, aime Mireille qui lui prefere Maurice, fils sans scrupules d'un riche mareyeur.