Daddy or Mommy 2

Since their divorce, obstetrician Vincent and engineer Florence live in houses that sit face to face, thus facilitating the shared custody of their four children, including a baby born during the legal proceedings. But this agreement is threatened when the doctor, now in a relationship with Bénédicte, learns that his ex is secretly seeing Edouard, who has made millions through an internet business. Jealous, Vincent tells Florence that Bénédicte is pregnant. For her part, Florence pretends to be preparing to marry Edouard. Convinced by a misunderstanding that their parents want to get back together, the three oldest children develop an ingenious and cruel plan to get rid of the stepmother and the fiancé.