Reviews two of Denmark's most experienced homicide chiefs six spectacular homicide cases and gives viewers a rare insight into the police's meticulous investigative work. To catch a killer, one must first understand him. One must find his faults and be able to discern his lies. In ‘Profile of a Killer’, viewers get a rare insight into the police’s meticulous investigative work. We are introduced to murderers whose personalities cover the whole spectrum from cold-blooded psychopaths to loving family fathers.