▁Madame ▁du ▁Barry . ▁They ▁plan ▁for ▁Lor enza ▁to ▁imp erson ate ▁the ▁Queen ▁and ▁buy ▁a ▁f riv ol ous ▁neck lace . ▁ ▁Z ora ida ▁becomes ▁je alous ▁of ▁Lor enza , ▁who ▁has ▁fallen ▁under ▁C agli ost ro ' s ▁power , ▁forget ting ▁her ▁true ▁love , ▁Gilbert . ▁Gilbert ▁runs ▁away ▁with ▁Lor enza . ▁C agli ost ro ▁re capt ures ▁her ▁and ▁mar ries ▁her , ▁hyp not ised . ▁ ▁King ▁Louis ▁XV ▁dies ▁and ▁Marie ▁Anto in ette ▁becomes ▁queen . ▁She ▁orders ▁C agli ost ro ▁to ▁leave ▁the ▁country . ▁C agli ost ro ▁gets ▁Lor enza ▁to ▁imp erson ate ▁the ▁Queen ▁and ▁pret end ▁to ▁be ▁in ▁love ▁with ▁de ▁Mont agne . ▁He ▁bu ys ▁the ▁neck lace ▁and ▁the ▁Queen ' s ▁reputation ▁is ▁dam aged . ▁ ▁Z ora ida ▁brings ▁Lor enza ▁to ▁Marie ▁Anto in ette ▁and ▁reve als ▁C agli ost ro ' s ▁plot . ▁Lor enza ▁agre es ▁to ▁test ify ▁against ▁C agli ost ro , ▁but ▁at ▁the ▁trial , ▁C agli ost ro ▁hyp not izes ▁her ▁into ▁stating ▁that ▁she ▁knows ▁nothing . ▁C agli ost ro ▁hyp not izes ▁Gilbert ▁into ▁test ifying ▁against ▁the ▁queen . ▁ ▁However , ▁Dr . ▁Mes mer ▁then ▁uses ▁the ▁neck lace ▁to ▁hyp not ize ▁C agli ost ro ▁into ▁conf ess ing . ▁C agli ost ro ▁aw ak ens ▁from ▁his ▁tr ance ▁and