Syrenka

"A man mysteriously vanishes in Fjällbacka. Despite all the efforts by Patrik Hedström and his colleagues at Tanumshede police station, nobody knows whether the man is dead or alive. Four months later he is found murdered, frozen in the ice. The case is further complicated when one of the dead man's acquaintances, author Christian Thydell, suddenly begins receiving anonymous threats"--Author's website.