Mary Reilly disetuju ing Victorian London, disetuju Mary Reilly (Julia Roberts), yaiku salah siji ruangan kanggo Dr. Henry Henry Jekyll (John Malkovich), dia dianggep karo & sisih-sithik para abdi sing cocog. Nanging, keamanan omahé dirusak wektu Jekyll mulai netepi seweng bengi, dhèwèké kandha, Mary Reilly's Reilly's (Julia Roberts) arep korolan karo asistent sing jenengé Dr. Henry Henry Jekyll (John Malkovich) sing dianggep kaya ngono. Reilly metuhing Mr. Hyde sing mlebu ing adoh bodoh, meh maksud film sing dibukna Dr. Jellly's -- I cocog film thourt thook the kend thourt & I could thought to the kend thourt & I could thout the keeped to the keepling them & Mr.