An accidental discovery of a drug for the mass unconscious and a naive schoolteacher's ardor lead to personal and almost global disaster. Harper's world edges on nightmares between life and death, waking and dreaming, insanity and sanity. Somewhere this crosses the line between Seconds (1966) and On Her Majesty's Secret Service (1969).
A copy of this film was recently rediscovered in a French archive, so happily it is no longer lost, although it is not available to the public as of yet.