Mousou Dairinin (Paranoia Agent) (2004) imdb

Title: Paranoia Agent 07 Bengali
Rating  (8)
Plot : Seemingly unconnected citizens of Tokyo are targeted for bludgeoning by a boy with a golden baseball bat. As detectives try to link the victims, they discover that following the assaults, the victims' lives have improved in some way.
Contributor : Moshiur Shuvo