Moebius is a 1996 Argentine science fiction film directed by Gustavo Mosquera, and starring Guillermo Angelelli, Roberto Carnaghi and Annabella Levy. It is based on the classic 1950 short story "A Subway Named Mobius" by Armin Joseph Deutsch. The film is set in the Buenos Aires Underground, in a dark and dystopian Buenos Aires.

Plot

On one 4 March, the controllers of the Buenos Aires Underground discover that train number UM-86 (a Siemens-Schuckert Orenstein & Koppel train), along with its passengers, has gone missing in the network of tunnels. After searching the entire network (which in the film is shown as being much larger than in reality) they fail to find both the train and its passengers.