Master and Margarita was written in a period when the terror of Stalin put an end to the "papier-máché rationalism" of the 1920s and when mass arrests, losses of livelihood, hundreds of thousands of people sent to lagers and death sentences created an atmosphere where impossible was very possible and where the world of fantasies, reality and unreality easily merged. The study also presents the philosophy of Bulgakov and the moral stand featuring his works in this historic context. The real evil is "represented" in the book not by trivial trick players and neighbours reporting each other hoping for getting a flat as a reward but by Berlioz who has no ideas; his only goal is to service the power unscrupulously. The existence of Berlioz thus in fact a non-existence – and that could be the judgement of Bulgakov on all power that became an end in itself.