In many movies, there's typically at least one character whom viewers naturally support. However, there are films where every character is an awful person. While this unconventional approach may not follow traditional storytelling, it adds intriguing complexity to the narrative. Most movies include a protagonist that the audience can root for – someone who displays courage, compassion, or other admirable qualities. However, some films diverge from convention by exclusively featuring unethical, unprincipled, and unlikable characters. Rather than providing viewers with a heroic lead to identify with, these movies populate their worlds with "bad guys."

https://screenrant.com/movies-where-every-character-is-horrible/