A professor's auto-accident death reveals two women competing for a con man's (Robert Foxworth) affections.
A woman (Jessica Walter) becomes involved in her husband's embezzlement scheme.
A blackmailing private detective (Patrick O'Neal) kills his victim.
His wife's murder threatens a publishing tycoon's (Fritz Weaver) political aspirations.
The courier's death thwarts the plans of three car-pool members to steal $300,000 from a firm.
A bondswoman (Sheree North) asks Barnaby to find a bail-jumping hit-and-run defendant.
Jealousy goads the leader (Gary Lockwood) of a theft ring into killing an insurance man.
Barnaby seeks to explain a motorcycle manufacturer's death during a product test-run.
An attempt at marital reconciliation involves a country-music singer (Julie Sommars) in a murder cover-up.
The owner's friends are Barnaby's top suspects in the theft of a $1 million diamond; guest Laurence Luckinbill.
A seemingly respectable bank president (Lois Nettleton) embezzles and murders; guest Ed Flanders.
An alleged suicide exposes a TV commentator's plan to reveal an industrialist's criminal ties.
Barnaby learns a teenage runaway (Darleen Carr) has married a hired killer.
A missing woman's body turns up near the home of her last companion, a pro-football player; guest Nick Nolte.
A wealthy manufacturer and an experienced yachtsman die in a sailing accident; guest Pamela Franklin.
Despite evidence, Barnaby believes a man accused of killing a judge is being framed.
A father hires Barnaby to find his college-student son, hiding after being wounded during a robbery.
A director's plan to use murder to rid himself of an over-the-hill actor backfires.
A former mental patient thinks she is losing her mind when she hears her dead daughter on the telephone.
A murderous actor uses his disc-jockey look-alike (Monte Markham in a dual role) as an alibi.
The victim's allergy provides Barnaby a clue in the death of a man who revealed an embezzler.
Two murderers make their victim appear to be a missing embezzler.
A British spy puts a double agent in danger by hiring Barnaby to find a Czech espionage expert.
A wife (Sharon Acker) is suspect in the death of her philandering husband.