Poor Eusèbe! Widowed at the age of 67, solitude is weighing him down. However, his excellent physical condition and his good disposition have a positive effect on Mélanie, a 25 year old. Mélanie is a good woman, but a little nervous and authoritative. She tries to calm his jovial nature using methods Eusèbe doesn't appreciate. This comedy almost becomes a drama, if not for a "second youth" when all takes a turn for the better.