Circumstantial Evidence dosen't prove the identity of crafty thieves! Nancy's friend Bess has been hired by Special Effects, a River Heights company, to decorate Albemarle's department store for the holidays. When Bess discovers that her friend Ali Marie is now working at the store, she's thrilled -- the two of them can have lunch and try on clothes for fun! But when some dresses are swiped, Ali is accused of stealing, and the party's over. Sure of her friend's innocence, Bess calls in Nancy to help find the real thief. With all the suspects and misleading clues, Nancy and her friends are running in circles -- and the holiday shopping rush isn't helping! Can they figure out the identity of a clothes-hungry kleptomaniac before the holiday season turns sour?