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.

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.

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

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.

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.