Sarah,astrugglingyoungwomanlivinginBrooklyn,agreestovolunteerasanexperimentalsubjectforapharmaceuticalcompanycalledDynamicHealthCuretobethebearerofLEXXandmakemoneytosolveherfinancialtroublesandtakecareofhermotherwhohasAlzheimer's.Ananochipisplantedintohercerebralcortexanddesignedtotakecontrolofthebodyinordertocontaindiseasesassoonastheyoccur.Butwhentheimplantwithartificialintelligenceturnssinisterandordershertocommitcrimes,Sarahisplungedintoamurderousspiralwithonlyonechoice:toliveordie.
