Libro kafkiano, even though by his own admission Nabokov had never read Kafka before writing it. The atmosphere is very similar to that of The Trial, where however the totalitarian state in the background is much more palpable.
Evidently, it is I who have some problem with Nabokov's style, because exactly as with Lolita, I have not been able to really get into the described fabric: everything remains a bit hazy to me, everything is interpretable and the author's writing, which is very baroque, does not help in the search for concrete reference points.
The sense of oppression remains. Nabokov is perhaps second only to Dostoyevsky in describing the sensation felt by someone who knows that soon he will be executed.