A 12 year old girl finds a broken mixtape belonging to the mother she never knew. She decides to track down each of the tape's obscure songs in an effort to find out what her mother was like, leading to a reconciliation with the aunt who raised her.

Single mom Maggie O'Donnell (Ashley Williams) is facing Christmas alone, until stranger Lucas Cavelli (Niall Matter) crashes into her life and becomes an unexpected house guest. Together, they overcome Christmas, while finding comfort in their growing bond.