Alternate Character Interpretation: Does Michel actually love Nicole, or did he woo her because she was useful in getting rid of Christina?
Fridge Logic: Given the reveal that the entire plan by Nicole and Christina to murder Michel is actually a plan by Nicole and Michel to murder Christina (via exploitng her heart condition by literally scaring her to death)... you'd think there'd be easier ways to give someone with a heart condition a heart attack.
Harsher in Hindsight: Christina is stated to have a heart condiction, and actually dies of a heart attack at the end, her heart condition turning out to be a plot point. Five years later, her actress Véra Clouzot died of a heart attack.
Les Yay: Hinted at in the 1955 film, explicit in the 1996 film.
Nightmare Fuel: The "dead" Michel climbing out of the tub with white eyes is effective even now.
The Woobie: Christina is married to an abusive asshole, seems to have no friends except her own husband's mistress, and has a heart condition which progressively worsens as the story unfolds (thanks to all the stress and paranoia she's put through). And then she gets murdered by said husband and mistress, who have been working together against her the whole time.
