Asleep In The Sun by Adolfo Bioy Casares

A mild-mannered man in Buenos Aires recounts how his difficult wife’s commitment to a dubious sanatorium entangles him in a bizarre scheme of mind transfers, where personalities shift between human bodies and dogs. When she returns inexplicably altered and a beloved pet goes missing, he navigates neighborhood intrigues, bureaucratic absurdities, and the coolly sinister methods of a celebrated psychiatrist, exposing a darkly comic tangle of love, jealousy, and identity. Blending domestic farce with speculative mystery, the story probes what makes a person themselves, and what happens when the soul can be packaged, sold, or caged.

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