When four generations of the Cooper clan come together for their annual Christmas Eve celebration, a series of unexpected visitors and unlikely events turn the night upside down, leading them all toward a surprising rediscovery of family bonds and the spirit of the holiday.

Mary searches for forgiveness from her family after being partially responsible for the death of her younger sister. As she attempts to reconnect with her mother in particular, she uses dreams as her escape from the pain. But the more and more Mary goes to her dream world, the harder she finds it to stay in the real one.