Miranda Quinn, the disowned heiress of the Quinn Group, arrives at her great-grandfather's birthday gathering with her five children, including Sean, a trumpet prodigy with autism. Despite her hopes of acceptance, Miranda faces harsh rejection and insults from family members who call her and her children unwanted and scorn them for their plain appearance and upbringing. The conflict escalates when a woman verbally attacks Miranda and her son, leading Miranda to demand an apology. However, the family refuses, deepening the rift as Miranda must decide how to respond to this ongoing hostility at a family event meant to celebrate a patriarch she is still not accepted by.