Family court judge Clémence lives with Gabriel, who she is very much in love with. However, she is jealous and suspects him of cheating on her. One day, she decides to put his faithfulness to the test during a trip to the Reunion.
Nostalgic for his glory days, a frustrated stay-at-home dad invites all of his high school Facebook friends to an 80s-themed surprise party for his exhausted corporate wife.