The novel revolves around a man who encounters his doppelgänger and becomes obsessed with the striking resemblance between them. This obsession leads him to concoct an elaborate scheme involving identity exchange and insurance fraud. As the protagonist meticulously plans what he believes to be the perfect crime, his narrative becomes increasingly unreliable, revealing his descent into madness. The story unfolds through a complex structure of layered storytelling, blending reality with the protagonist's delusions, and culminates in a darkly ironic twist that challenges the reader's perception of truth and fiction.

The 2103rd greatest book of all time