Dead Crazy

IMDB

2011, 90 minutes

The world is in trouble.

A treatment for cancer has side effects. It shuts down all vital organs apart from one small part of the brain. The primal part, leaving the test subjects feral and cannibalistic. In addition, those who have turned become infectious. rapidly spreading worldwide. It's nasty and caught it's creators by surprise. Most of them have paid with their lives and are either dead or infected.