Hervanta Homicide 2000 (2000)

"To the bad guys they were certain to die. For women they were an extreme pleasure."

Hervanta is being stalked by a mysterious serial killer who uses his video camera to film the murders he commits. For some reason, this sneaky psychopath sends the murder videos he made to inspector Kallinen. Kallinen goes to solve the crime with his partner detective Kuokka. A lot of people have to die before the story gets into the solved cases folder...