Season 3
Episodes
Two pals of Peggy's are accused of murder, and the real killer is elusive.
A colleague's death leads Mannix into a dubious investigation.
Old home week, as Mannix looks into a murder and tries to make up with his father.
Someone is out to get a film star.
Mannix reopens a malpractice case against opposition.
Three thugs hold Mannix, Peggy, and a woman hostage, claiming they want the $312,000 she has in a briefcase at home, but they may be after something even more valuable.
An accidental drowning has many surprising facets.
A secretary has an enemy, but who?
A hit-and-run case lands Mannix in the middle of a gang war.
A killer's attempt leaves Mannix blind.
The attempted murder of an executive leads Mannix to several likely suspects.
A stolen thoroughbred has Mannix buffaloed.
A policeman's son is suspected in a robbery.
Peggy's late husband is named on a list of payoffs.
A wealthy man hires Mannix to find the person blackmailing him—eventually leading to Mannix being suspected of murder.
Eyewitnesses peg Mannix's client, but the victim isn't what he seems, either.
A domestic quarrel, and a missing secretary, make for a confusing case—“Rashomon”-style.
Mannix tries to locate an heir, who is brought into danger by the attention.
A murder in the offing implicates an old army chum, but the victim's identity is uncertain.
Mannix has an enemy who seems to be dead.
The strange utterances of a disturbed young girl are clues in a case of robbery and murder.
A colleague's death leaves Mannix with the evidence he was murdered for.
A TV host's murder proves difficult to investigate, as everyvbody wants it canceled.
Mobsters try to extort a million from a small town.
Carnival mishaps may be aimed at the proprietor.