Riccardo, a sessions musician, has a job in Munich - but he's promised to spend Christmas with his little son Junior in Italy. An invitation to perform in a live broadcast in Munich on Christmas Eve interferes with his plan. He nevertheless decides to secretly go and fetch his son from Northern Italy and take him back to Munich with him, while the singer Michelle - a recently rekindled "old flame" from Riccardo's teenage days - covers for his absence.