Ezio seems to have lost the sexual connection with his wife, so much so that he falls asleep during their intimate moments. Lucia, against Giulio's wishes, gives her friend a hand so that he can be forgiven by his wife, but Ezio misunderstands. There will soon be a dance competition. Giulio and Lucia, unbeknownst to each other, take tango lessons but, while Lucia, thanks also to the skill of her partner Barilon, makes great progress, her husband is clearly in difficulty.