On the trail of a serial killer, a police investigator with formidable instincts is close to the goal when his superior interferes in his case.On the trail of a serial killer, a police investigator with formidable instincts is close to the goal when his superior interferes in his case.On the trail of a serial killer, a police investigator with formidable instincts is close to the goal when his superior interferes in his case.