Max and Anna Mancini have been married twenty-five years and have two teen children: though twins, the kids are by temperament diametric opposites: Tina is rebellious and allergic to schoolwork; Nico is easygoing and with a fixation for videogames. The parents and kids are in a permanent state of conflict, one that reaches its peak on the day of the twins’ eighteenth birthday, when the mega-party they are allowed to throw at the house spins out of control and degenerates into a nightmare. Max and Anna come to the grim realization that they don’t know the first damned thing about those two adolescents and are now left to wonder out loud about where and how they had gone wrong, while gazing back full of nostalgia at the glory days when Tina and Nico had been adorable little sweethearts to love, cuddle and protect. But is that how things had actually been back then? At the end of that disastrous bash, Anna and Max are “magically” offered a second chance to make sense of their rapport with their offspring and to attempt – when the occasions arise – to avoid making the same mistakes.