The Club of St. Nicholas is surprised when Amerigo, the horse of St. Nicholas, can suddenly talk. They want to discover how this is possible, but before they can find out how this has happened, villain Jef Vandenaere steals the horse. He is hoping to win a talent contest with it. But St. Nicholas' eve can't continue without Amerigo! Will the Club, with the help of Stijn, succeed in finding the horse back on time? And can St. Nicholas' eve still be celebrated this year?

After losing sight of each other for 25 years, the paths of three childhood friends cross paths. It concerns successful conductor Victor Slingeland, successful writer Sander Vastenhout and general practitioner Bert Duprez. Slingeland enjoys a reputation as a womanizer. This intrigues Vastenhout who, as is often the case with authors, is without inspiration. Vastenhout sees the unraveling of Slingeland's complex personality as possible new material for a novel. With the help of Dr. Duprez, Vastenhout tries to find out about Slingeland's secret by imitating his behavior and thus challenging him.