After his girlfriend disappears at a gas station years later the man gets letters from the abductor.
The structure of this film is amazing. It jumps effortlessly back and forth in time - first it just recounts some of the steps of the kidnapper, the rest is revealed through direct speech. It is really amazing how the stuff was interwoven. Definitively worth further analysis!
Acting was really good, except that maybe the kidnapper seemed a bit too youthful, and the beard is rather exotic. Anything with backflashes should really study this one.