A top CIA operative commits murder the way only a brilliant spy can, never guessing he'll have to contend with a man like Lt. Columbo.

The first secretary to the Suarian king may have immunity from the consequences of committing murder, but Lt. Columbo is wilier than any foreign diplomat.

A faded dance star of film and stage murders her husband and makes it look like a suicide; Lt. Columbo doubts her seemingly perfect alibi.

A psychiatrist, who specializes in hypnosis, murders the husband of his mistress and convinces her to lie to the police; it's up to Lt. Columbo to discover the truth.

A gadget-happy inventor murders his mother-in-law; Lt. Columbo is on the case.

Lt. Columbo takes a trip to Acapulco, but finds himself on a new case when a used car dealer commits murder on the cruise ship.