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After a clever serial killer is murdered in jail, Mark and Steve realize an equally lethal copycat is on the loose.
After a clever serial killer is murdered in jail, Mark and Steve realize an equally lethal copycat is on the loose.
More episodes
Diagnosis Murder
S4, EP4 "X Marks the Murder"After a clever serial killer is murdered in jail, Mark and Steve realize an equally lethal copycat is on the loose.
Diagnosis Murder
S8, EP12 "Sins of the Father"The shooting death of a patient opens a doorway to Mark's past that forces him to face the disappearance of his father.
Diagnosis Murder
S8, EP13 "Sins of the Father"Mark attempts to discover why his father, a former police detective, vanished more than 50 years earlier, leaving him and his mother to fend for themselves.
Diagnosis Murder
S8, EP15 "Bachelor Fathers"Mark takes on the extortionists responsible for murdering the twin sister of a young woman who claims Dr. Travis fathered her infant son.
Diagnosis Murder
S8, EP14 "You Bet Your Life"When a big-time bookie and a gambling heart surgeon turn up dead, Mark bets that something foul is afoot.
Diagnosis Murder
S8, EP11 "Less Than Zero"Dr. Sloan investigates the demise of a television star who may have died because of compulsive dieting.
Diagnosis Murder
S8, EP10 "Playing God"Someone kills a medical student, drains his blood and stores the corpse in the Community General morgue.
Diagnosis Murder
S8, EP9 "Confession"A priest suspected of murder hears the true killer's confession and can't break his vow of confidentially, so Mark goes under cover to clear his name and put the real killer behind bars.
