This was probably my first Finnish movie that I watched and it wasn't bad. It was a bit weird sometimes but the story is good enough to keep you entertained. It's a bit hard though, certainly if you're an animal lover like myself, and even if you know that no animals got hurt whilst making this movie, it still remains a bit hard to watch at times. The message of the movie is just karma, and karma is a bitch. Don't do to others what you don't want to happen to yourself, that's basically it. Matti Onnismaa, I never heared about him before, gave a good performance playing the euthanizer/vigilante. It's a bit dark, a bit slow, but that's how the character is so the movie portrays him perfectly. Not bad to watch once.
Review of Euthanizer
