Emma and Antonio, married with two children, have been separated for nearly a year. Antonio is living alone in the house where he used to live with his wife, while Emma has gone back to her mother, taking the children with her. Then, one night, a flying squad is called to the palazzo and the police burst into the apartment where gunshots have been heard. In a rapid succession of events, Un giorno perfetto describes the twenty-four hours before this moment, the simple but “unique” life of a group of people who are shadowed every step they take. Camilla turns seven, her brother Aris is sitting an exam at university, Emma loses her job in a call-center, her daughter Valentina meets a boy she likes, the honorable Elio Fioravanti is doing the round of election rallies, Maja, his beautiful wife finds out she is pregnant, young Kevin is invited to an extravagant party, the teacher, Mara, is meeting her lover and Antonio sees his wife for the last time. The stories interweave on the great stage of a frenetic, disquieting Rome that seems to be heading towards tragedy, although the slightest gesture, just one word, would be enough to change the path of destiny. Un giorno perfetto describes a passionate love, separating and uniting Emma and Antonio – with irony, emotion and compassion. It portrays worlds diverse and distant, that then meet, as if in an unrelenting thriller.