A criminal turned state witness informs Montalbano of an arms stash in a cave just outside Vigata. Also uncovered in the cave is a secret chamber where the bodies of two lovers, killed sometime in the 1940s, were buried in a bizarre ritual. An intrigued Montalbano must challenge the Mafia and deal with the arms cache before he can investigate this second find.

Mr Luparello, a renowned local engineer and leading political figure, is found dead in a car at a notorious prostitution spot on the outskirts of Vigata. The coroner rules that he died of a heart attack following an amorous encounter. Fending off pressure from prominent ecclesiastical figures who wish to keep the case under wraps and navigating the intricacies of local party politics, Montalbano goes about making sense of the available evidence, including the incongruous discovery of an expensive necklace found at the site of the murder.

Inspector Montalbano is puzzled by the kidnapping of Susanna Mistretta, a young woman whose once-wealthy family has fallen on hard times. When the kidnappers contact the family to demand a ransom, the responsibility of coming up with the money falls on an estranged relative. But something in the case just doesn't add up.

As Vigata celebrates St George’s Day, an elderly man, born locally, returns to Sicily after having lived in America for many years. On the same day a diary dating from WWII is discovered hidden in an old bunker. Inspector Montalbano is entrusted with the dark secrets revealed in the diary and starts to research the time around which it was written. But during his investigation, a 90-year-old businessman is found murdered in his own home. Montalbano starts to think that the events cannot possibly be unrelated.

Frustrated by his department's repressive handling of security for the G8 summit in Genoa, Montalbano seriously considers resigning. His attempt to unwind with a casual swim along the Sicilian seashore fails when he discovers a corpse in the water. The inspector's pursuit of the cause of death intersects with another mystery-the inquiry into a hit-and-run that claimed the life of a young boy who may have been victimized by human traffickers. When Montalbano realizes that he may have inadvertently aided the boy's victimizers, his internal turmoil intensifies

The murder of Angelo Bonpensiero would appear to be the start of a mafia war. Montalbano has his doubts. He is then taken off the case and assigned to investigate the disappearance of a young Ukrainian woman, seemingly unrelated to the previous case he will find out that he should have trusted his instinct after all...

A young Don Juan is found murdered in front of his apartment building and an elderly couple are reported missing after an excursion to the ancient site of Tindari. Inspector Montalbano tries to solve these two seemingly unrelated cases amid the daily complications of life at Vigata police station. But when he discovers that the couple and the murdered young man lived in the same building, his investigation stumbles onto Sicily's brutal 'New Mafia' and leads him down a path more twisted and far-reaching than any he has ever been down before.

Fazio is missing. He's not at home, his mobile is switched off and his father is worried. Believing that the young officer had been working a secret investigation on his own, Montalbano fears that Fazio may be in serious trouble and a frantic search is mounted in an effort to find him alive.

Montalbano is visiting Livia in Boccadasse when he is called back to Vigata to investigate the murder of a 70-year-old prostitute - as well as disturbing accusations at an elementary school.

A local shop is burned down in a clear case of arson. Its owner seems to have disappeared into thin air. Montalbano investigates, but is also kept busy by multiple reports of strange kidnappings in which female victims are abducted and released unharmed shortly after, with all of their possessions untouched and for no apparent reason.

A man's body is found inside an industrial pipe on a building site. Montalbano and Fazio manage to identify the victim and try to contact his missing wife. Meanwhile, journalist Lucia Gambardella reaches out to Montalbano with information on a local corruption ring involving fraudulent building contracts.

Detective Montalbano investigates the murder of a local businessman called Lapecora. Lapecora's widow suspects that he was killed by his lover Karima, a young Tunisian woman who mysteriously disappeared on the day of the murder. After succeeding in tracking down Karima's five-year-old son Francois, Montalbano realises that the case might be linked to that of a Tunisian man, also killed in mysterious circumstances on the same day that Lapecora died. Meanwhile, Montalbano's partner Livia, who has been entrusted with looking after Francois, becomes very attached to the young orphaned boy.

The yacht of a wealthy woman docks at Vigata's harbour as a disfigured body is discovered at sea. Coastguard Laura Belladonna is assigned to the case to assist Montalbano and the two soon become close. The investigation casts doubts on the motives and sincerity of the yacht's crew and Montalbano begins to suspect that there may be more to the story they have given him.

A former prostitute has disappeared. Her sister tells Montalbano that she had recently fallen in love, so the police start their investigation by speaking to her lover, a meek and gentle man who is puzzled about where his partner could have possibly gone.

When the naked dead body of a young woman is found in a villa outside Vigata, Montalbano discovers that she had recently bought the villa and was in the process of restoring it using her wealthy husband's money. When the case is taken from Montalbano and given to rival inspector Panzacchi from nearby Montelusa, Panzacchi draws some easy conclusions and the investigation risks going badly off course. Will a proud Montalbano stick his neck out to regain control of the case or will he allow his incompetent colleagues to pin the murder on the wrong suspect?

Goldsmith Alberto Larussa appears to have committed suicide by turning his wheelchair into an electric chair. But Inspector Montalbano discovers that the dead man's will, which leaves everything to his brother Giacomo, was forged. Giacomo is arrested, but he maintains that he did not kill Alberto. Meanwhile, Deputy Inspector Mimi Augello is working on the case of a mysteriously-murdered electrician.

The death of local construction magnate Girolamo Cascio leads Montalbano back to the murder of Cascio's leading competitor, Giacomo Aletto, who was shot and killed two decades earlier. Rocco Pennisi, Aletto's partner, was sent to prison for the crime. But was the right man convicted?

While busy dealing with the arrival of boat migrants from across the Mediterranean, and with the harrowing human tragedy that accompanies them, Inspector Montalbano stumbles upon the brutal murder of a local dressmaker. The murder appears inexplicable. Montalbano must now uncover the secrets behind the victim’s life to get to the truth behind her death.

The seemingly accidental death of a blind man leads Montalbano to an island off the coast of Siciliy. Here the Inspector discovers that both the murder victim and a local fisherman had each deposited huge sums of money in their respective bank accounts. Following the mysterious demise of a second man, who was also blind, the investigation begins to focus on the operations of a charitable foundation which increasingly looks not so charitable after all.

As the small town of Vigata prepares for its New Year celebrations, local police inspector Salvo Montalbano is reluctantly making arrangements to travel to Paris with his girlfriend. What he would much rather do, however, is accept a dinner invitation by his cleaner Adelina, who has promised to cook rice croquettes. A wealthy husband and wife are found dead in what appears to be a car accident, but quickly turns into a murder investigation. And as the circumstances surrounding the death of the couple grow more and more mysterious, clues point to the involvement of Adelina's son Pasquale.

Investor Emanuele Gargano has disappeared with the savings entrusted to him by the people of Montelusa. Montalbano's investigation brings him into contact with some of Gargano's staff - his obsessively loyal secretary Mariastella Cosentino and the provocative Michela Manganaro. Meanwhile, Augello is getting cold feet about the prospect of his wedding.

A series of mysterious muggings takes place in Vigata, ending in tragedy when one of the victims is killed. Meanwhile, a man virtually destroys the emergency room at the hospital after finding out that his young daughter is pregnant. A local doctor is also missing and presumed dead. Montalbano investigates all three cases, gradually uncovering the links between them.

Inspector Montalbano discovers the existence of a secret underground dwelling beneath Mimi's family home and finds a trunk containing the dead body of a young woman who had disappeared six years earlier. As he begins his investigation, Montalbano makes the acquaintance of the victim's alluring twin sister.

The naked body of a young woman is discovered on a beach near Vigata. The girl was shot in the face, her identity is unknown and the only clue police have to go on is a butterfly tattoo on her shoulder. Montalbano sets to work trying to establish the girl's identity and investigates possible links between the murder victim and a local charity with connections to the church. Meanwhile, his relationship with Livia continues to suffer as a result of his poor work/life balance.

Montalbano wakes up one morning to find the carcass of a dead horse stranded on the beach below his house. Soon after, a beautiful woman walks into Vigata police station to report the abduction of her racehorse. A line of investigation emerges that brings Montalbano into contact with the elegant world of horse racing, via some illegal horse betting rackets organised by the Mafia.