A lip reader ""overhears"" a murder plot.

Mannix enters a race in which a driver is killed.

On a helicopter trip, Mannix thinks he sees a murder being committed.

Peggy's boyfriend goes on the lam.

A boarding school marked for demolition sets off a mystery involving a corpse and a quarter-million.

A missing wife is wanted by the mob.

A dead ex-con has Mannix's name on him.

Part of a manuscript gone missing holds the answer to a homicide.

A young heir wakes up bloodied and minus a grlfriend.

A court-martialed soldier has plans for revenge.

Peggy's boyfriend is suspected in a drug case.

A doctor's son is kidnapped to force a failed surgery.

An old pal asks Mannix for help; when he arrives at the man's rural town, there's murder afoot.

An old foe's girlfriend dies suspiciously.

A missing wife, reported dead, is a difficult quarry.

Mannix is called to testify against an ex-con he sent up, but his time suspects a frame.

Scotland Yard is after millions from a robbery, and they're not the only ones.

A attempt on his life forces Mannix into a complex search.

A political campaign and the death of a small-time crook.

An injured client disappears.

A model's suicide proves doubtful.

Mannix finds new evidence in the case of an embezzler he sent up the river.

Mannix cooperates in a police investigation.

A newspaper publisher's daughter is implicated in the death of a mobster.

A missing contractor leads to mixed motives and a doubtful case.