This movie depicts the actions of a man affected by paranoid personality disorder. From the "psychological" point, the movie is excellent! I wouldn't be surprised if Dusan Kovacevic consulted some psychiatrist while writing the screenplay for this movie. However, I must point out one thing - do not fall in to the "ideological" trap of this movie! This particular disorder has nothing to do with the ideology! I can give you an example - My father suffers from the same personality disorder - his actions are quite the same as Ilija Cvorovic's - and he's not a communist at all! The only difference is, he's not after "subtenant - imperialist spy" - he's after his "wife's lover"! But his behavior is quite the same as Cvorovic's! To conclude, this movie is excellent, be sure to watch it - but be aware that disorder depicted has nothing to do with the ideology! It affects all people equally, where ever they live, and whoever they might be!