It's New Year's Eve in Medarcos, a small town in the mountains of Madrid, inhospitable and frozen. Roma is 9 years old and her favorite place is the lap of her father, Rodolfo. But the atmosphere is rarefied after her mother has decided not to spend the holidays with her father's family. When Roma dresses up as a boy to sing in the middle of the family celebration, she discovers her father's intolerance. Nothing will be the same.