Mikhail Afanasyevich Bulgakov (Russian: Михаил Булгаков) was a Russian writer, medical doctor, and playwright. His novel The Master and Margarita, published posthumously, has been called one of the masterpieces of the 20th century.
He also wrote the novel The White Guard and the plays Ivan Vasilievich, Flight (also called The Run), and The Days of the Turbins. He wrote mostly about the horrors of the Russian Civil War and about the fate of Russian intellectuals and officers of the Tsarist Army caught up in revolution and Civil War.
Some of his works (Flight, all his works between the years 1922 and 1926, and others) were banned by the Soviet government, and personally by Joseph Stalin, after it was decided by them that they "glorified emigration and White generals". On the other hand, Stalin loved The Days of the Turbins (also called The Turbin Brothers) very much and reportedly saw it at least 15 times.
The vibe was completely off in the opening chapters of Избранное роман "Мастер и Маргарита": рассказы, like showing up to a party where everybody already has inside jokes. Stick with it, though. Mikhail Bulgakov slowly peels back the weirdness, and by the time you reach the scene in the flooded basement, you're all in. It's messy and the worldbuilding takes real effort, but the payoff is worth the confusion. For readers who like to work for it. Pass if you want to be eased in.