August 7, 1990 in Rome Simonetta Cesaroni is killed with 29 shots stab in dell'Aiag offices in via Poma 2. Nicholas Montella investigating the murder. The inspector tries to find the key to the problem by listening and questioning Paola, the sister of Simonetta, Pietrino Vanacore, the doorman of the building who committed suicide in 2010, and boyfriend Raniero Busco, then sentenced in first instance to 24 years in prison.