The Sadness (2021) Link

is widely considered one of the most extreme and viscerally upsetting horror films of the modern era. Directed by Canadian filmmaker Rob Jabbaz in his feature debut, this Taiwanese production transforms the traditional "zombie" outbreak into a sadistic, nihilistic nightmare. Core Concept: The "Alvin" Virus

Some infected appear to be aware of their horrific actions—one character is seen crying even as they commit atrocities—suggesting they are conscious but unable to stop their own impulses. Plot & Production The Sadness (2021)

The infected retain their intelligence, ability to reason, and speech. is widely considered one of the most extreme