Sezon 1

Les meurtres ABC (based on The ABC Murders)—As a serial killer taunts Larosière, the great detective’s career could be the next casualty.

Am stram gram (based on Ordeal by Innocence)—After the death of a beloved philanthropist, suspicion falls on her brood of adopted children.

After Inspector Lampion is injured during a police raid, Superintendent Larosière rents a cottage in a small village and begins receiving threatening letters. Based on the Miss Marple novel "The Poisoned Pen". Directed by Eric Woreth, 2009.

La maison du péril (based on Peril at End House)—When a beautiful heiress is targeted for murder, Larosière loses his heart—and nearly his life.

Le chat et les souris (based on Cat Among the Pigeons)—While investigating murder at a fancy boarding school, Larosière is haunted by his past.

Je ne suis pas coupable (based on Sad Cypress)—When death stalks a women’s retreat, a reluctant Lampion goes undercover.

Feeling underappreciated, Lampion leaves his post to a join a private investigation firm, and gets a lead on a 15-year-old case. Based on the Hercule Poirot novel. Directed by Eric Woreth, 2010.

Superintendent Larosière runs into his former captain from the Great War, who invites him to his family castle for a big announcement. Based on the Hercule Poirot novel Taken at the Flood. Directed by Eric Woreth, 2011. Aired on MHz as "The Ebb and the Flow".

Un cadavre sur l’oreiller (based on The Body in the Library)—With Larosière accused of strangling a prostitute, Lampion tries to clear his name.

Lampion befriends a young woman who suffers from terrifying visions of a bloody woman. Based on the Miss Marple novel. Directed by Eric Woreth, 2011.

Superintendent Larosière and Inspector Lampion investigate the murder of a woman last seen entering a theater. Based on the Hercule Poirot novel Lord Edgeware Dies. Directed by Renaud Bertrand, 2012.