Blue Distance (1983)

Blue Distance is set in a train compartment. An androgynous woman thinks of letters a lady wrote to a gentleman about the necessity of separation and the desire for a casual encounter in the future. Another woman, a mirror image of the first, disrupts her reverie. After she leaves it is unknown whether the first woman's wish was about the man with whom an encounter will never take place or about the woman with whom it has just happened.