Plumber Martin and his younger colleague Frank are on call on Christmas Eve of all days. Frank's girlfriend Regina, who is expecting her first baby at any moment, is anything but thrilled. But it doesn't help, duty is duty. One emergency call follows another, but this evening it's not just broken water pipes that are waiting for the two plumbers...

• DEFA-Studio für Spielfilme
• Fernsehen der DDR
• Ulrich Thein
• Daniel Minetti
• Janina Hartwig
• Petra Blossey
• Peter Kalisch
• Barbara Dittus
• Manja Göring
• Walfriede Schmitt