u/Loud-Raccoon-5194

A movie, 1990s to 2010s, a man keeps killing blonde women because they remind him of his wife. There's an opening scene where the man, as a little boy asks the wife, as a little girl, to marry him, and she calls him gross. It then flashes forward, and they're married (or maybe just dating). They're on a vacation that the wife doesn't appreciate despite it costing the husband like $80,000. The man becomes so frustrated with his wife for the horrible way she treats him that he starts killing blonde women who look like her.

I'm trying to remember an aninated film I saw when I was younger. It might have been a short or feature-length film. From what I remember, it was in a foreign language, probably European (or maybe it had no dialogue at all?) and was in an illustrated style, where (I think) everything was in a white void, and everyone consisted of black outlines. The key imagery I remember was a sort of overweight guy (a dad?) (who had done something cruel earlier in the film?) (with a mustache and a wife-beater, and an overall slobby look?) turning into a butterfly (or a moth?). I also remember a bathtub and the vague impression of a female character. Any of these details might be erroneous, but they're the best I can remember.