The show features a panel of four celebrities whose object is the correct identification of a described contestant who has an unusual occupation or has undergone an unusual experience. This "central character" is accompanied by two impostors who pretend to be the central character; together, the three persons are said to belong to a "team of challengers." The celebrity panelists question the three contestants; the impostors are allowed to lie, but the central character is sworn "to tell the truth." After questioning, the panel attempts to identify which of the three challengers is telling the truth and is thus the central character.