Antony, a young enthusiast and exuberant man, meets Ester at the theatre “La Pergola” in Florence where he works, he falls in love and marries her.
Because of their different political factions, they have to leave Florence and go to Cuba, where Antony studies galvanism and makes an amazing discovery: voice can run along electrical wires. However, Antony and Ester must leave Cuba and go to the United States: Ester falls ill, their economic situation gets worse, Antony goes on with his experiments but with little success.
In the meantime, a serious accident forces him to bed for a long time. Some dear friends support him: Antony has the chance to get back to his experiments, creating the first telephone system in the world, from his laboratory to his bedroom, where his wife spends most of the day because of a serious rheumatoid arthritis. Antony is no longer able to safeguard his invention and will be repeatedly cheated. He will find himself in court having to prove he is the inventor of the telephone system, but his rival, Bell, will come off better…