 Marty finds a psychic group meeting close by and manages to ask for help through one of the members, who attend the manor and rescue Jeff.Annette Andre does not appear in this episode, as she was ill at the time of recording.Her character Jeannie Hopkirk is explained away as being on holiday, and Jenny (Judith Arthy), Jeannie's sister, who first appeared in "A Disturbing Case", is standing in for Jeannie as Jeff Randall's secretary.