Architect Walter Craig (Mervyn Johns) goes to Pilgrim's Farm to see a potential client. When he arrives at the house, he gets the feeling that he has been there before. Once inside, he meets a group of people who seem oddly familiar. He tells them that he has dreamt about each one of them and begins to list events that occurred in the dream. Walter's revelations begin a conversation amongst the group, and each person admits to having experienced a strange, unexplainable event.