Joe Mannix is visited by an old friend, Beverly Miller, a life-long worker in the carnival world, whose dream of owning her own carnival is threatened when there are several attempts on her life. Mannix visits the carnival on a Saturday as Beverly prepares it for its opening day, to see if he can learn whether someone is indeed trying to kill her. He also brings along Peggy and her son Toby, to atone for bringing Peggy into the office on her day off. Mannix finds that many of the "carny" workers are uncooperative because they deem his presence to be bad luck. And the "accidents" continue, even with Mannix on the scene.
—aldanoli