"questo nostro amore" narrates about the chronicles of the Costa and Strano families, living in Turin, from the '60s to the '80s, going thorugh all the social changes of those years.

At a convention, medical researcher Michel Touzac goes with colleagues to see stage caricaturist Targel, whose assistant Florence recognizes him...and attempts suicide. Saved by Touzac's new technique, Florence is revealed in a flashback as Michel's abandoned wife Karin, whom their daughter Susette thinks is dead. Can Susette cope if they now re-unite?