Carnival mishaps may be aimed at the proprietor.
Mobsters try to extort a million from a small town.
A TV host's murder proves difficult to investigate, as everyvbody wants it canceled.
A colleague's death leaves Mannix with the evidence he was murdered for.
The strange utterances of a disturbed young girl are clues in a case of robbery and murder.
Mannix has an enemy who seems to be dead.
A murder in the offing implicates an old army chum, but the victim's identity is uncertain.
Mannix tries to locate an heir, who is brought into danger by the attention.
A domestic quarrel leads to a murder, and the investigation to an earlier incident.
Eyewitnesses peg Mannix's client, but the victim isn't what he seems, either.
A blackmailing case has highs and lows.
Peggy's late husband is named on a list of payoffs.
A policeman's son is suspected in a robbery.
A stolen thoroughbred has Mannix buffaloed.
Lots of people want an executive out of the way.
A killer's attempt leaves Mannix blind.
A hit-and-run case lands Mannix in the middle of a gang war.
A secretary has an enemy, but who?
An accidental drowning has many surprising facets.
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.
Mannix reopens a malpractice case against opposition.
Someone is out to get a film star.
Old home week, as Mannix looks into a murder and tries to make up with his father.
A colleague's death leads Mannix into a dubious investigation.
Two pals of Peggy's are accused of murder, and the real killer is elusive.
