The fourth man

By the time Detective Frank Frolich discovers that his new girlfriend's brother is the notorious leader of a criminal gang of three, it's too late - he is already obsessed. Then the gang strikes again, this time with an unidentified accomplice, and Frolich's usually razor-sharp judgement is blunted by his infatuation. In search of this fourth man, Frolich is drawn into the underworld of Oslo as well as into the dark corridors of his own soul.