As a psychological mystery I think that it was a good movie. The acting is excellent especially that of Romain Duris whom I know from totally different roles. The only think that turned me off (done on purpose I guess but still...) was the greasy hair of the "commandant". It is gross to watch and not even realistic because even if he does not wash his hair everyday, he does wash it once in a while. I guess this was done to reflect his depressive state but still for me it was difficult to watch. Definitely recommend the movie to anyone who is in the mood for a slow, dark and good mystery.
Review of Black Tide
