A young woman is invited by her girlfriend, who lives in an English country mansion, to stay there with her. The estate, however, isn't quite what it seems--and neither is the friend who issued the invitation.
| Actor | Role |
|---|---|
 Angela PleasenceHelen | Helen |
 Peter VaughanBrady | Brady |
 Lorna HeilbronAnne | Anne |
 Nancy NevinsonHannah | Hannah |
| RRonald O'NeilJohn | John |
| MMarie-Paule MailleuxCora | Cora |
 Mike GradyNick | Nick |
 Raymond HuntleyBurke | Burke |