the fourth season. The season begins with Gaetano "Tano" Cariddi expanding his position at Antinari Bank. In order to maintain sole rule, he arranges for Giulia Antinari to drown in a "bathing accident". With this, Tano becomes Corrado Cattani's mortal enemy. Tano's machinations reach their peak as he strategically marries Ester Rasi (Simona Cavallari), daughter of powerful insurance company president Filippo Rasi (Claude Rich), and after realizing that she is actually helping the police, kills her. The investigation into the case of the mysterious murder of a casino owner, Carmelo Tinadari, has been entrusted to a new judge - the legendary Silvia Conti (Patricia Millardet), with whom Cattani initially quarrels, but later has a love affair. What follows is an intense series of dangerous criminal cases with multiple homicides and attempts on Cattani's life. When the Mafia realizes that Conti is unshakeable and will not succumb to corruption, they organize her abduction and rape. Shortly after Ester's death, Cattani is able to uncover all the associates involved in a nuclear waste smuggling business, whose principal organizer is Tano. In the last episode, one morning in the courtyard of a Milan hospital, Cattani is ambushed by multiple gunmen and killed on the spot. Silvia Conti finds his corpse, and vows to avenge him. Season five After Michele Placido's departure, the creators of the series had to solve the difficult task of maintaining continuity with the story, while introducing a new lead actor in a credible manner. They did so by creating the character of Davide Licata (Vittorio Mezzogiorno), a new commissioner with a different, harder look and approach. The plot was also moved back to Sicily. Real economic issues were again used as a story background, with a focus on embezzlement of state funds that were approved for structural projects in Sicily and then disappeared into other channels. Political attacks on the series increased so much after this season that Rai was forced to temporarily stop production (see Reaction in Italy). The season was again helmed by Luigi Perelli, and launched in 1990. The two main links to the previous story include the judge Silvia Conti, who wants to find the murderers of Corrado Cattani, and head mobster Tano Cariddi, who continues to engage in criminal activities. Davide Licata enters the plot as a police officer who had to flee to the United States in the '70s because he was the