It's opening day, and Cat is babysitting her brother Barry's young son while Barry, a professional events organizer, confers with dignitaries. But suddenly a day of pure delight turns into a scene of horror. Cat and Jeremy witness a murder, and the chief suspect is a man they both love -- Barry. He can't be the killer, but Cat also can't deny what she saw with her own eyes. Cat's first priority is to get Jeremy away from the devastation. They run to the merry-go-round, but as they circle on the brightly painted animals, a shot rings out. Someone is aiming at Cat, or perhaps at the boy. Could Barry be desperate enough to shoot at his own sister and child, the only witnesses to the killing?