Justine is 21 years old and has lived with her grandparents and her cousin Jules since the death of her parents. As a nursing assistant at a retirement home, she spends much of her days listening to her residents' stories.

After bonding with Hélène, an almost 100-year-old resident, the two women slowly reveal their stories to one another. Whilst Justine helps Hélène to relive her memories of love and war, Hélène encourages Justine to confront the secrets of her own past, and the loss she keeps buried deep within.

One day, a mysterious phone detailing a shocking revelation shakes the retirement home to its core. At once humorous and melancholic, Valérie Perrin's novel depicts the consequences of undeclared love and, in her inimitable way, portrays once again how the past is never really past.