Police captain Gwenaële Garrec is investigating about the discovery of a corpse on the beach of Saint-Malo. She tries to convince her temporary teammate, captain Eric Vautier, that their case is more complicated that it seems.

The corpse of a woman appears in a cave near the sea in Saint-Jean-de-Luz. Captain Marie Daguerre will investigate accompanied by the Commander Becker, a rough Parisian police that prove to be the father of the main suspect, in turn disappeared.

A dead body is found on the stairs leading to the sanctuary esplanade of the town of Rocamadour. Before being killed, he was apparently forced to undergo an expiatory pilgrimage as in the Middle Ages and to climb on his knees the 216 steps of the staircase. But what sin could this man have possibly committed to deserve such a sentence?

A police captain learns that his ailing father could be connected to a murder at Rouen Abbey.

A famous sailor and her son discover a headless corpse close to Yeu Island.

In a grisly murder that evokes local legend, a woman rolls to her death in a barrel.

Childhood cruelties from decades ago fuel revenge in La Rochelle.

A police chief fights to reopen the investigation into her father's death.

A top investigator teams up with her aunt to solve a case involving a skeleton found in papal vault.

A man dressed as a convict is found dead on a beach near the citadel.

A Swiss and a French detective team up to investigate a deliberate drowning on Lake Geneva.

A murder in a warehouse may be linked to a shipyard accident 30 years prior.

A forensics trainer lends a hand to a homicide case that may shed light on her own family's past.

When a perfumer is found dead in a fragrance tank, the investigation opens up a related cold case.

A man is tortured and crucified, with the only clues coming from a stolen Nostradamus manuscript.

Former sweethearts investigate the death of a winemaker discovered inside a vat with his eyes glued shut.

A local aristocrat is found murdered in a way that depicts a 600-year-old legend.

A woman’s body is found nearby the Lake Pavin in the Auvergne region. The staging of the murder baffles the investigators in its resemblance to the legend of the lake, whereby the sinners of Besse, having provoked God’s anger, were buried alive and then covered in the Devil’s tears.

The son of a food manufacturer is murdered with a pitchfork, suggesting deaths inflicted in a 17th century rebellion.

A young woman portraying Joan of Arc is shot dead by an arrow during a parade through Orleans.

A 60-year-old man lies dead in a cemetery next to an oyster shell engraved with his name.

Husband and wife investigators look into the death of a woman wearing the costume of a Celtic princess.

A corpse clutching a crystal chess piece is found in the old fortress of Bitche.

A surgeon investigates his estranged son's death for the sake of his grandson.

A few hours before a museum event, a sculpture appears to bleed and the artist's corpse is found inside.

A body lies on the moors, next to a legendary menhir.

Sprigs of broom around a murder victim suggest an ancient legend.

The body of a healer is found covered in white petals.

The historic procession of Saint-Jean in the city of Tulle is disrupted by dead bodies.

In the heart of the Amiens hortillonnages, on a Nautilus-shaped ride gondola, floats the lifeless body of Charlotte Jelenski. Who could have attacked this quiet woman, who was leading an ambitious amusement park project about Jules Verne's work?