Sam and Clementine have two little girls, Sam has just started a new dream job, and Clementine, a cellist, is busy preparing for the audition of a lifetime. They're having tea with Erika, her oldest friend, and Erika's husband Oscar. A quiet break for tea turns into a last minute invitation to a barbecue with neighbors Tiffany and Vid, and all the couples' children. And a casual barbecue turns into a traumatic event. Two months later Clementine and Sam can't stop asking themselves the question: What if we hadn’t gone?