When Chiara, a violinist at the conservatory, is brutally murdered after a performance, inspector Maccari is put on the case. Maccari, whose own wife was once murdered by a serial killer, suspect professor Baraldi, the director of the conservatory. But as more fall prey to the killer, Maccari comes to a shocking conclusion...

After the sudden death of their lifelong friend Adriana, Evelina and Milla reunite in their seaside hometown. Once inseparable, the two women had drifted apart, but grief brings them back together. As they confront old wounds and rediscover the strength of their bond, they begin to suspect that Adriana’s death may not have been accidental. Between family tensions, hidden secrets, and the challenges of middle age, their renewed friendship becomes both a refuge and a driving force in uncovering the truth.