Objectively, Odette Toulemonde has nothing to be happy about, but is. Balthazar Balsan has everything to be happy about, but isn't. Odette, awkwardly forty, with a delightful hairdresser son and a daughter bogged down in adolescence, spends her days behind the cosmetic's counter in a department store and her nights sewing feathers on costumes for Parisian variety shows. She dreams of thanking Balthazar Balsan, her favorite author, to whom, she believes, she owes her optimism. The rich and charming Parisian writer then turns up in her life in an unexpected way. A tale about the comic encounter between atypical survivors with nothing in common.