When the president of a bank is shot during a robbery, the only description Burke can get of the killer is that he was ""just ordinary"". Burke interviews a man who passed out during the robbery, and hunts for clues with a local bookie. After the two other bank robbers are slain, Burke investigates the bank president's wife and son, his very flirtatious secretary, his business partner and his accountant, and a beautiful B-movie star. Just as Burke is about to arrest the man who shot the bank president, the killer is himself slain - but by whom? And why?

A big business wheeler-dealer, formerly part of a carny consortium, meets his end after injesting cyanide - but he didn't eat or drink anything that had been tampered with. The suspects all formerly worked with the victim in the carnival racket and are now heads of powerful companies: a health club president, a fitness tonic manufacturer, the producer of fancy lingerie and the head of a think tank. Only one of the old gang hasn't made it big and now runs a local merry-go-round. When Les almost dies of cyanide as well, Burke discovers the murder weapon in an unlikely spot. He then turns the tables on one of the carny con artists and nails the killer.