An abandoned house in Northern Helsinki, a dead body in the garage. Detective Lieutenant Kari Takamäki's homicide team gets a case that looks like a professional hit but they are perplexed by the crime scene. Takamäki's trusted man Suhonen goes undercover as "Suikkanen," a gangster full of action. In pursuit of the murderer, he must operate within the grey area of the law. But, will the end justify the means?