Show was about a Police Lieutenant Detective who seems rather dim-witted to his criminal adversaries but is really crazy like a fox! The criminals become so over confident that Lieutenant Columbo will never catch them. His trademark is to tell them that he's done with his investigation, he turns towards the door to leave, turns back and says, "Oh, just one last question". And you can bet that's the question they were sure he wouldn't be asking. In one moment, they go from being sure they'll get away with their crime to knowing they've been caught! Show tane a 4 year break in the mid 80`s before making a come back.