Eve and Yanis, parents of a one-month-old baby girl, move into their new suburban house, looking for a fresh start. But one evening, following a tragic accident, their baby dies suddenly. Broken, Eve and Yanis try to rebuild themselves. They find comfort with their neighbors across the street, Livia and Stéphane. She's a nurse, he's a cop. A special bond between the two couples develops: they share their sorrows, their joys... and soon more. Their destinies intertwine and intertwine far beyond reason, to a point of no return so neither will come out unscathed.