KatherineofAlexandria,broughtupasanomadandlivinginthedesert,wasagedjust11whenEmperorMaxentiussawherwhilstoutonpatrol.Consumedbyherbeauty,impudenceanduncannytalentforlanguages,heabductedthechild,killingherfamily.Theslaughterwaswitnessedbyheryoungfriend,Constantine,whowouldlaterbecomeEmperoroftheWesternRomanEmpire.HeneverlosthopeoffindingKatherine.Asayoungwoman,KatherinerefusedtosubmittoMaxentius'offersofmarriageandshecontinuallydenouncedhisbrutalenforcementofpaganreligionuponthemasses.Stillobsessedwithherbeauty,MaxentiusbroughtKatherinebefore50ofRome'sfinestscholarsinanopencourtinAlexandria,wheresheeloquentlydemolishedtheirarguments.WhenConstantinelearnedofKatherine'swhereaboutsandimprisonmentatthehandsofMaxentius,heledhisarmyfromYorkinadesperatebidtosaveher.

一名孤女从一次邪教仪式中被解救后，被送往圣凯瑟琳收容所。在那里，她不仅要学习新技能，还必须直面那些一直在暗中追踪她的恶魔。