Nonat Ventura, an orphan raised by nuns in Girona, Spain, embarks on a compulsive quest to uncover his origins, with the hope that he is destined for a higher social status. His search leads him from a successful apprenticeship, to factory work in Barcelona, and finally to a band of thieves that seeks to get rich by any means necessary. Nonat's central story frames a series of stories, a kaleidoscopic effect within a One Thousand and One Nights narrative: fictional tropes of orphans, spinsters, maids seduced by masters, crooks, go-getting provincials combined with realist depictions of factory workers, haberdashers, street-porters, corrupt politicians, and Belle Époque high society.

Català relishes describing the male proletarian ambience of small factories and capturing the fraught atmosphere, carnival of disguises, and class tensions on the city's streets, in its households, Liceu opera house, and theaters. A rebellious artistic project that was set to shock and discomfort readers and critics, Català contests the prevailing ideas on space, class, language, art, and gender.