Race car driver Tom Kovack (played by Leonard Nimoy) suddenly begins to experience psychic visions. He meets Michelle Brent (played by Susan Hampshire), an expert on the paranormal and the two form an unlikely partnership. Kovack's visions draw them into an occult themed mystery at a remote inn on the English coast.
The film has an interesting premise: the sceptical but psychic Tom, teamed with the non-psychic believer Michelle. The dynamics between the two are an interesting variation of the relationship best exemplified by Agents Fox Mulder and Dana Scully on the later The X-Files.