While teaming up to search Fontana's estate, Lidia and Jacopo unearth a vital clue they hope will alter the outcome of Grazia's landmark case.

The arrival of an old friend with a desperate plea shakes Lidia’s relationships and beliefs as she investigates a mysterious death at the circus.

As Lidia and Fourneau land on opposing sides of a case that hits close to home, Enrico aids a painter whose alibi for a murder hints at a larger scandal.

In the wake of a shooting, Fourneau takes over the Nitti investigation. Enrico receives an eminent guest, while Lidia and Jacopo race against the clock.

Jacopo volunteers to help Lidia solve a boxer's murder after Fourneau uncovers a hole in Grazia's story, forcing Enrico to frantically pivot his defense.

Lidia is determined to keep fighting for equality. When a friend is murdered and found with two cryptic notes in his pocket, she teams up with Jacopo.

After a seance at a wild party, a wealthy businessman mysteriously expires, and the most likely suspect has been locked in an asylum for years.

As Lidia investigates a mysterious poisoning at a prestigious boarding school, Jacopo digs deeper into their friend's death and Marianna uncovers a lie.

An unexpected wedding is disrupted by an unexpected death. As Lidia looks to get to the bottom of it, Enrico prepares a very important speech.

Enrico remains doubtful about running for Parliament while Prosecutor Fourneau and Lidia struggle to connect the victims of a series of brutal murders.