A number of business people, keeping the Christmas Eve office party going longer than was originally intended, are beset by a fire that starts in the basement of their office building and creeps up at them from floor to floor.
| Actor | Role |
|---|---|
 John ForsytheDan Overland | Dan Overland |
 Joseph CampanellaHoward Foster | Howard Foster |
 Lynn CarlinLee Parker | Lee Parker |
 Anjanette ComerDarlene Foster | Darlene Foster |
| LLaurie HeinemanGinger Macklin | Ginger Macklin |
 Don MeredithKelly Freeman | Kelly Freeman |
 Kelly Jean PetersBetty Carson | Betty Carson |
 Pippa ScottThelma Overland | Thelma Overland |
 Louis GussCharley | Charley |
 Hank BrandtJim Pierson | Jim Pierson |
 John FinneganStark | Stark |
 Danny GoldmanKasey | Kasey |
| MMark TapscottCapt. Harris | Capt. Harris |
 Bob HastingsSam Lewis | Sam Lewis |
 Tracie SavageCathy Pierson | Cathy Pierson |
| KKevin NudisPaul Pierson | Paul Pierson |
| DDean SantoroHarper | Harper |
 Tracy Brooks SwopeCathy Foster | Cathy Foster |
 Tim HerbertBuilding Manager | Building Manager |
| AArt LewisSecretary | Secretary |
 Norman AldenCapt. Parker | Capt. Parker |
| JJames W. GavinHelicopter Pilot (uncredited) | Helicopter Pilot (uncredited) |