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...
| Actor | Role |
|---|---|
 Ulrich TheinMartin | Martin |
| DDaniel MinettiFrank | Frank |
 Janina HartwigRegina | Regina |
| PPetra BlosseyRita | Rita |
| PPeter KalischHerr Bartsch | Herr Bartsch |
 Barbara DittusFrau Müller | Frau Müller |
| MManja GöringFrau Grote | Frau Grote |
 Walfriede SchmittKrankenschwester | Krankenschwester |
 Arno WyzniewskiAlbert (voice) | Albert (voice) |
 Wolfgang GreeseNot listed | Not listed |
| HHeidrun WelskopNot listed | Not listed |
 Marianne WünscherNot listed | Not listed |
 Peter BauseNot listed | Not listed |
 Kaspar EichelNot listed | Not listed |
| AAlexander WikarskiNot listed | Not listed |
| BBernd EichnerNot listed | Not listed |
| KKlaus TilsnerNot listed | Not listed |
 Helmut KrätzigNot listed | Not listed |