Barnaby looks into the suicide of a woman who was married to a famous writer. Digging deeper into the case he discovers that the writers worst critic may actually be his biggest fan, and that his wife's suicide is looking more like murder.
An insurance company hires Barnaby to investigate the theft of $500,000 worth of platinum from a jewelry company. During the robbery an employee is shot and killed by the robber, but Barnaby suspects it may be an inside job.
A beautiful young woman hires Barnaby to look into the death of her father who was apparently killed by a computer programmed machine in his own plant. It isn't too long before Barnaby suspects foul play rather computer malfunction.
A very powerful and influential man from South America hires Barnaby Jones to find his son, who also has strong political ties to his country. But not everyone within his or his son's organization wants that to happen, and will resort to murder to prevent it.
A young widow hires Barnaby to investigate the "accidental" death of her husband of only four weeks. While investigating the case another young man who was once a suitor to the same woman winds up dead under mysterious circumstances, leaving Barnaby to believe neither death was accidental.
While investigating a deadly auto accident that killed two people including the chauffeur of a wealthy woman who herself was also seriously injured Barnaby suspects a sinister cover-up involving the woman's plastic surgeon and his nurse.
Barnaby is hired by a woman to locate her fiancé; who disappeared along with some her valuables. The man who is a conman, has moved on to his next mark but one of his former victims finds him and threatens to reveal all to his latest mark so he kills her. At the same time some of the woman's friends catches him in a lie.
The owner of a basketball team is informed that his star player once threw a game. The person who told him that, wants him to make sure that his team loses a game. So the owner kills him. Barnaby is hired by the man's wife who is the sister of the player to find him.
Barnaby is hired to investigate the alleged suicide of a very wealthy woman's husband. What he discovers is another investigator who supplements his income with blackmail, and will murder anyone who gets in his way.
An imprisoned dying man makes a deal with a murderer to take the rap for the man's crimes, just as long as he will financially take care of his wife after he's gone. But when the deal goes sour, Barnaby is hired to see to it that justice is served.
A guy who works for a bail bonds woman who's a friend of Barnaby's, is coerced by a man who wants to be bailed out so that he could sell some stuff he has and says he'll cut him in. But tries to pull a fast one but the guy finds the man and kills him and takes the loot. He gets rid of the body. The bonds woman asks Barnaby to find the man or she'll forfeit the bond. He tries to sell the stuff but the man's partner whom he also cheated wants his share.
A man who works for an insurance company is killed when a guy attacks him and throws him down an elevator. The police think it's an accident but the man's wife doesn't think so, so she hires Barnaby to investigate. What they don't is that the man was providing a group of thieves with info on various clients so they can rob them. And the man who killed him is the leader who just got out of prison. It seems that the man was getting together with the leader's girl who's also a member of the gang. And there's dissension in the gang when the leader insists on restoring the...
An insurance company hires Barnaby to investigate the death of the owner of a motor corporation who drove his motorcycle off a cliff during testing. After Jones hears rumors of an affair, and then learns of another mysterious motorcyclist in the area that day, he suspects it was no accident.
A singer who hit it big goes back to her hometown to perform. She runs into her ex who is now dating someone else, and the girl he is dating is very insecure when the singer is with him. She confronts the singer, and the singer hits her knocking her out. Her manager who likes the singer tells her that she's dead but in actuality is not. He tells the singer to leave and he'll handle it, he wakes her up and he gets her out before anyone sees her. They talk and he wants her to pretend to be dead. The manager likes the singer and if can make the singer think she killed ...
A jewel thief's carefully laid out plans to steal a diamond worth one million dollars are ruined when he is forced to kill a security guard who shows up during the heist. Barnaby is once again called to investigate by the insuring company.
Barnaby is hired to look into the mysterious death of a man who was planning to sell his ranch and move. It seems he was planning to withdraw his money from the bank. Meanwhile the banker seems to be dipping into the accounts and the man's plans threaten to expose her so the banker and her boyfriend killed him.
A struggle for a gun between three men leads to a deadly shooting. Two of the men involved make it look like the third committed suicide, but their cover up leads to a web of deceit and a cold blooded murder mystery for Barnaby to unravel.
A contract killer after falling for a girl decides to quit. But his brother who idolizes him wishes he would go on. Barnaby is hired by the girl's family to find her. Eventually he asks about her boyfriend, the killer. When his brother learns of Barnaby, he tries to take care of it. But things get out of hand.