Columbo

Los Angeles homicide detective Lieutenant Columbo uses his humble ways and ingenuous demeanor to winkle out even the most well-concealed of crimes.

A surgeon kills a nurse who suspects him of intentionally botching the heart surgery of his colleague, a cardiac expert.

An American chess champion plays a private match with his challenger and kills him because the man is a better player.

Twins kill their wealthy uncle just before his marriage to a younger woman.