Amok

After Polish businessman Mariusz Roszewski's body is found on the banks of a river, the criminal investigation soon runs cold. Three years later, a book is published that appears to hold detailed and sinister clues to the unsolved murder. When troubled detective Jacek meets the calmly enigmatic author, he sets off on an ominous path of strange discoveries, red herrings and compromised intuition. A tense, unsettling study of the malevolent banality of a sociopath. (Edinburgh International Film Festival)