Free at last! Alice and Peter are celebrating their retirement – and with it, a new phase in their lives. But when her best friend Magalie dies unexpectedly, Alice makes a shocking discovery: She has had a secret affair in France, for 15 years no less! Confronted with the finite nature of life, Peter is thrown into an existential crisis. To bon-vivant Alice's great chagrin, he becomes a health fanatic. And when Peter invites Magalie's widowed husband Heinz to join them on a cruise, which Alice had hoped would breathe new life into their marriage, their harmonious retirement is over. On the high seas, Peter only spends time with Heinz. Disappointed and hurt, Alice decides not to return to the ship during a shore excursion in Marseille. Instead, she sets out to find Magalie's lover. On their separate paths, Alice and Peter eventually find not only themselves, but also a new way to spend their golden years.