The first several seasons imagined protagonist Johnny Dollar as a private investigator drama, with Charles Russell, Edmond O'Brien and John Lund portraying Dollar in succession over the years. In 1955 after a yearlong hiatus, the series came back in its best-known incarnation with Bob Bailey starring in "the transcribed adventures of the man with the action-packed expense account – America's fabulous freelance insurance investigator."
The format best remembered was instituted by writer-director Jack Johnstone. Each case usually started with a phone call from an insurance adjuster, calling on Johnny to investigate an unusual claim: a suspicious death, an attempted fraud, a missing person, or other mysterious circumstances. Each story required Johnny to travel to some distant locale, usually within the United States but sometimes abroad, where he was almost always threatened with personal danger in the course of his investigations. He would compare notes with the police officials who had first investigated each strange occurrence, and followed every clue until he figured out what actually happened. Johnny's file on each case was usually referenced as a "matter," as in "The Silver Blue Matter" or "The Forbes Matter".
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