Workmen digging in a building discover the remains of a 300 year-old devil cult.
| Actor | Role |
|---|---|
 Barbi BentonCaroline Trent | Caroline Trent |
 Gareth HuntPeter Whiteway | Peter Whiteway |
 Brian DeaconAlan Yardley | Alan Yardley |
 Peter WyngardeDaniel Haswell | Daniel Haswell |
 Patricia HayesGranny Waters | Granny Waters |
 Carol RoyleKim Osborn | Kim Osborn |
 Ralph MichaelFather Harris | Father Harris |
 Gary WaldhornInspector Crane | Inspector Crane |
 Robert JamesFather Ambrey | Father Ambrey |
| RRichard HamptonTed Pinder | Ted Pinder |
 Angela GrantJill | Jill |