Michele, a young mathematics professor, moves into a new flat. Lonely, depressed and neurotic, he spends his time obsessively monitoring the couples around him, especially his neighbors, a young pair struggling to make their relationship work. When Bianca, a new teacher at the local high school, enters his life, Michele finds himself falling in love. At the same time, a string of murders rocks the neighborhood, casting suspicion on him.

Nanni Moretti
as Michele Apicella

Laura Morante
as Bianca

Roberto Vezzosi
as Commissario

Remo Remotti
as Siro Siri

Claudio Bigagli
as Ignazio

Enrica Maria Modugno
as Aurora

Vincenzo Salemme
as Massimiliano

Margherita Sestito
as Maria

Dario Cantarelli
as Preside

Virginie Alexandre
as Martina