A Casebook," (via MeTV), writer Richard Levinson, who co-created "Columbo" with his frequent collaborator and co-writer William Link, revealed that Columbo's signature catchphrase was as casual an ...

A woman who blames Lt. Columbo for the loss of her husband sets out to get back at him. But before she goes after him, she first goes after the man who informed on her husband and by showing the Lt.