Death Note
DEATH NOTE デスノート (original)
When a Japanese high schooler comes into possession of a mystical notebook, he finds he has the power to kill anybody whose name he enters in it.
Starring Mamoru Miyano, Noriko Hidaka, Nozomu Sasaki
It's a animation and mystery show, and has a rating of 8.9 out of 10 from Imdb which is very high for this kind of show.
Watch it here
Not found streaming from Denmark.