When Marie learns that she is pregnant, she immediately decides to go and announce the good news to her beloved father, a happy Basque inhabitant. Thomas, Marie's fiancé, who has never been introduced to his father-in-laws, decides to take the opportunity to surprise her: arriving unannounced in her fiefdom. On the spot, Thomas discovers the horrible reality: while Thomas is a fierce supporter of the vegan cause, his future father-in-law is THE most famous butcher in the area. Meat lover vs vegetarian, will father and son-in-law manage to live together without killing each other?