A crew of interplanetary archaeologists is threatened when an alien creature impregnates one of their members, causing her to turn homicidal and murder them one by one.
| Actor | Role |
|---|---|
 Robin ClarkeMark | Mark |
 Jennifer AshleyHolly | Holly |
 Stephanie BeachamKate | Kate |
| SSteven GrivesGary | Gary |
 Barrie HoughtonKarl | Karl |
 Rosalind LloydGail | Gail |
 Victoria TennantBarbra | Barbra |
| TTrevor ThomasMitch | Mitch |
 Heather WrightSharon | Sharon |
 David BaxtRicky | Ricky |
 Dominic JephcottDean | Dean |
| JJohn SegalJeff | Jeff |
 Robert PughRoy | Roy |
 Judy GeesonSandy | Sandy |
| NNick MaleyAlien Babies | Alien Babies |
| KKevin O'SheaCorin | Corin |