A lawyer comes up with a clever plan to murder her husband. After the deed is done, a seemingly slow-witted, slovenly homicide detective is assigned to the case--but he's not nearly as incompetent as he appears to be. (imdb)

Ken Franklin and James Ferris have become rich as the writing duo of the popular Mrs. Melville mystery novels. In reality, James Ferris writes the novels, while Ken Franklin handles all the publicity. When Jim wants to try serious writing on his own, Ken comes up with what he believes is a foolproof scheme to kill his partner and collect on the insurance policy they have on each other. What Ken Franklin doesn't count on is a rumpled police lieutenant who won't be led astray...and a witness. (IMDb.com)

A private investigator kills his client's wife after she threatens to expose his blackmail scheme. The client then hires the detective to assist Columbo in the search for the killer. (TV.com)

A war hero shoots and kills his business partner; an easily manipulated young divorcée is the only witness. (IMDb.com)

Noted art critic Dale Kingston kills his uncle for his valuable collection of paintings. Despite Columbo's suspicions, all the clues point to the dead man's ex-wife. (imdb)

A mousy heiress murders her brother, pretending she thought he was a burglar. Lt. Columbo unravels her alibi. (imdb)

A chemical plant's director gets threats and issues threats, and one of the employees develops and plants a bomb in his car. When the car turns out to be missing, Columbo is called to find out what happened. (imdb)

Bo Williamson comes back from Europe after a travel two months long and finds a surprise: his wife Jennifer financed the project of building a new town. Bo, crazy for horses and country music, is raving mad at this and confronts the architect Elliot Markham who had got the original idea. Then Bo disappears and it looks as a new travel is began. But his first wife Goldie thinks he has been killed and Lt. Columbo begins his inquiry. (imdb)