The Border City (2002)

Professor Song, staying in Germany, was suspected of espionage and banned from Korea. Now he's expecting to visit Korean after 33 years. The Border City', by whech Berlin was called during the period of partition, could also be a name for Seoul naw that the city is haunted by the 'red complex' and refuses Prof. Song to come back to his homeland.

Unfortunately the movie The Border City is not yet available on HBO Max.