Calaf has solved Princess Turandot's riddles. But Turandot categorically refuses to marry the stranger, so Calaf offers her a way out. If she knows his name by the next day, he will kill himself and she will remain unmarried. And so an entire country sets out in search of this one name, and no one is allowed to sleep that night: ‘Nessun dorma’. In this act, you will experience how love can still blossom from this situation.