Peppard played Thomas Banacek, a suave, Polish-American freelance investigator based in Boston, who solved seemingly impossible thefts (see locked room mystery). He then collected from the insurance companies 10% of the insured value of the recovered property. One of Banacek's verbal signatures was the quotation of strangely worded yet curiously cogent "Polish" proverbs. -- WikiPedia
When a professional football player vanishes from the field of play in front of a large crowd and millions of TV viewers, Banacek is called in by the owner of the team to solve the mystery.