When detective Roland Hassel's father figure and mentor, Yngve Ruda, is brutally murdered, he is devastated and decides to undertake his own covert investigation. He owes Ruda everything and so he is obsessed with finding his mentor’s murderer and exacting revenge. But Hassel follows his own set of rules – justice has nothing to do with the law for him. Even the fragile peace with his girlfriend Daniela and his stepdaughter Vida is threatened by the operation. Caught in a downward spiral of his obsession, he would still do anything to salvage the relationship, because he can’t bear yet another loss. Writer Olov Svedelid’s tales of detective Roland Hassel have been a big hit with Swedish readers since 1972. To date, 29 of the detective novels have been published, and 12 have been filmed.