Kym is a young woman struggling with substance abuse who temporarily leaves rehab to attend her sister Rachel's wedding. Her presence brings tension to the family's bustling house, stirring up unresolved conflicts and buried emotions. Kym's arrival upsets the delicate balance, causing friction with her family, who are wary of her erratic behavior. The film captures the chaotic, overlapping conversations and the intricate dance of family dynamics, exposing the wounds and regrets that linger beneath the surface.

Rachel's wedding preparations serve as a backdrop for the family's attempts to reconcile their differences. As the big day approaches, Kym confronts painful memories and strained relationships, especially with her mother, Abby, and Rachel. Festivities are tinged with moments of raw honesty and open confrontation, revealing the complex web of love, resentment, and forgiveness that binds the family. The gathering forces each member to face their vulnerabilities and ultimately reflect on the possibility of healing.