Junon is the matriarch of the troubled Vuillard family, who come together at Christmas after she learns she needs a bone marrow transplant from a blood relative. The Vuillard's shared history of physical and mental illness, estrangement, self harm, and loss doesn't lead itself to the idea of a cheerful holiday season. Hopefully the Christmastime reunion, a scheme concocted by three of the youngest family members, will finally bring peace to their family.