The dirty cop begins with Inspector Relander's cold-blooded murder, which is investigated by the police duo Raittinen (Raunio) and Jokinen (Kulmala). Jack (Tuiskinen), a hard-core member of the Teisko mafia, is also involved in the murder. Behind the assignment is the mysterious Mr. Rönkvist. Is Rönkvist ultimately a man or a myth?
