"Molloy" is a complex and enigmatic novel that follows the journey of its eponymous character, an elderly, disabled vagabond, who is tasked with finding and killing a certain person. The narrative is split into two parts: the first is told from Molloy's perspective as he navigates his way through a strange and often hostile world, while the second follows a detective named Moran who is assigned to find Molloy. The novel is renowned for its challenging narrative structure, its bleak and absurdist humor, and its profound exploration of themes such as identity, existence, and the human condition.

The novel follows a historian living in a small French town, struggling with a strange and unsettling feeling of disgust and revulsion he calls 'nausea'. He grapples with the existential dread of his own existence and the meaningless of life, continually questioning his own perceptions and the nature of reality. As he navigates through his everyday life, he is plagued by his philosophical thoughts and the overwhelming sensation of nausea, leading him to a profound existential crisis.

This philosophical novel explores the idea of the Übermensch, or "Overman," a superior human being who has achieved self-mastery and created personal meaning in life. The protagonist, Zarathustra, descends from his solitary life in the mountains to share his wisdom with humanity. Through a series of speeches and encounters, he challenges traditional beliefs about good, evil, truth, and religion, and advocates for the transcendence of man into a higher form of existence. The book is noted for its critique of morality, its poetic and often cryptic language, and its exploration of complex philosophical concepts.