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After Danny (Danny Bonaduce) is caught sneaking into a movie without buying a ticket, the Partridge family members attempt to prove that honesty is the best policy by launching a 24-hour "experiment", during which none of them will tell even the smallest lie. Not surprisingly, the family finds out that it's tough to be 100 percent honest--especially with Danny dutifully annotating and cataloguing each and every minor prevarication. Songs: "Roller Coaster" and "If I Had a Monkey".