Die Zeit danach (1994)

An economics expert from the West is contracted by a large firm to assist in the reorganization of a debt-ridden steel plant in the former Eastern Bloc. Believing himself to be eagerly awaited, he finds that his position has already been taken: Another man has already begun the job in his name, obviously with official approval. What first appears to be a strange mix-up soon turns into a threat to his existence when he discovers that not only his professional, but also his private identity has been assumed by the stranger.

Unfortunately the movie Die Zeit danach is not yet available on HBO Max.