- Butt-Monkey: Lampion for the 1930s, Avril for the 1950s.
- Deliberate Values Dissonance: The show is consistent with those.
- In Les Meurtres A.B.C., up-and-coming Inspecteur Duval expresses his admiration for Hitler's accomplishments. Lampion is sceptical.
- Alice Avril's boss sees no problem in stealing one of her articles and continue to stick her to the agony column because she's a woman.
- Rewatch Bonus: After Alice's realization that she's bi or gay and her following coming out, the character's intense relationship with a friend (Francine), and subsequent grief when they're torn apart, as well as her insistence to pretend to be in a lesbian relationship with Marlene when infiltrating a hotel, down to sharing the same bed and eagerly egging her into doing all the couple activities take a whole different meaning. Same arguably goes for her previous failures with men, and constant reminders to Marlene that she "don't need no man".
YMMV / Les Petits Meurtres d'Agatha Christie