When banker John Putnam Thatcher becomes involved with the Dreyer Company, he knows it is going to be interesting; after all, the Dreyer chocolate bar, with or without pecans, has been world-famous for decades. But when Dreyer's commodity expert is murdered on the floor of the New York Cocoa Exchange, speculators and candy jobbers begin to ask what is going on in the front office. Between watching the price of cocoa futures plummet, avoiding the lead in a TV documentary, and entertaining two reluctant Italian industrialists, Thatcher almost misses the clue that tells him who has been playing things sweet and low.