Late Bloomer (Japanese:Osoi Hito)is a 2004 Japanese film by Go Shibata, about a handicapped serial killer named Sumida.
Sumida is disabled with cerebral palsy, but all he wants is to hang out with his friends and enjoy beer, rock and roll and women. When his best friend steals his secret love, he launches into a cold-blooded rampage of revenge. The film is shot in grainy black and white and took over 5 years to make.