The Seventh Key is a British series of English lessons in 1969. It was recorded for English lessons in foreign countries like Norway and The Netherlands. The Seventh Key is a suspense story about an inheritance case. The story was written by the British linguist David Handforth. I was aired on Norwegian TV from 1969 to 1975. Starring: Diana Chappell, Cheryl Conte, Geoffrey Hinsliff, David Munro. Music by Kåre Furuholmen..