Set against the backdrop of the Prague Spring period of Czechoslovak history, the novel explores the philosophical concept of Nietzsche's eternal return through the intertwined lives of four characters: a womanizing surgeon, his intellectual wife, his naïve mistress, and her stoic lover. The narrative delves into their personal struggles with lightness and heaviness, freedom and fate, love and betrayal, and the complexities of human relationships, all while offering a profound meditation on the nature of existence and the paradoxes of life.

"The Clay Machine-gun" is a surreal and complex novel that explores the nature of reality and illusion. The story is set in post-Soviet Russia and follows a protagonist who has multiple identities, including a poet in 19th-century Russia, a 20th-century psychiatric patient, and a 21st-century advertising executive. The narrative moves between these identities and realities, blurring the lines between them and creating a layered and philosophical exploration of Russian society, identity, and the human psyche.