Io E Lui by Alberto Moravia

A middle-aged man finds his libido unexpectedly personified as a separate, willful presence that talks back and pursues its own desires, forcing him into absurd and revealing situations; through their quarrels, outings and domestic embarrassments the narrator confronts the gulf between intellect and bodily impulse, exposing anxieties about masculinity, desire and social respectability in a tone that mixes satire, eroticism and dark comedy.