Sinceherchildhood,Jessicahasbeenhauntedbyrecurrentnightmareswhosemeaningescapesher.ThispeculiarityhasledhertostudythepsychophysiologyofdreamsandtofollowatherapywithSean,hermentorandboyfriend,totryandunderstandtheoriginofhernightmares.Followingthedeathofhermaternalgrandmothershehardlyknew,Jessicareluctantlyreturnstothefamilyhome.Shedoesntgetalongwithhermotherverywellandisnotlookingforwardtoseeingheragain.Uponherarrival,Jessicadiscoversthatherlategrandmotherislyingintheadjoiningroomtoherownduringthewake.Afteraroughfirstnightmaderestlessbyastrangenightmareinwhichshemeetsherdeadgrandmother,Jessicasuddenlybecomesill.Stuckinbedwithahighfever,theyoungwomandecidestouseherlethargicstatetotryoutluciddreaming.Inordertodoso,andonSeansadvice,Jessicabreathesalittlebitofetherwheneversheneedstosinkdeeperintotheotherworldtotryandtakecontrolofhernightmares.Jessicathenbeginstowanderinanightmarishworldinhabitedbytwistedversionsofherfamilymembers.Shegraduallyimprovesherskillsasaluciddreamerandinvestigatestosolvethemysterythatgnawsherandhauntsthefamilyhome...