District attorney J.L. McCabe strikes down on the crime in Los Angeles together with his special investigator Jake Styles and assistant D.A. Derek Mitchell.
"Diagnosis Murder" follows the adventures of Dr. Mark Sloan, an amiable and avuncular doctor who is also a genius at solving murders. Dr. Sloan is aided in his homicide investigations by his son, LAPD Lt. Steve Sloan, pathologist/medical examiner Dr. Amanda Bentley, and ER resident Dr. Jesse Travis.