Ramatoulaye, a 50-year-old teacher, has been married to lawyer Modou Fall for 25 years. The couple is very close and happy. When her husband takes a second wife – her daughter's best friend – a struggle between tradition and modernity begins.

Every Eid celebration, Anta has the task of bringing the leg of lamb to her paternal grandmother, as tradition dictates. This year, she begs her half-sister Bigué to go in her place, claiming that her friends are visiting. What Anta doesn't know is that this decision will change the fate of the entire family forever.