Tomorrow is Christmas at Vincent and Beatrice Barand's house. Vincent is happy, it's his favorite day. Unfortunately, the whole family cancels at the last minute. Result: no children, no grandchildren... While Beatrice is looking forward to this intimate evening, he is overwhelmed and can't imagine a Christmas together. So he decides to go to a retirement home to invite a lonely resident to join them and share the Christmas spirit. Monique, 85 years old and obsessed with death, arrives... soon followed by Jeanne, a former prison guard with no filter. For all four of them, this December 24th promises to be as explosive as it is unexpected!