FlorindaBolkanplaysthedaughterofaprominantEnglishpoliticianwhokeepshavingrecurring"nightmares"inwhichshemakeslovetoabisexualnymphowholivesdownstairsandconductsall-nightLSDorgies.Whenthenocturnalwetdreamsbecomemurderous,theneighborturnsupdead,andFlorindaisthemainsuspect.Didsheactuallycommitthemurdershedreamtabout?Isshebeingframedbyherphilanderinghusband?DidFlorindaactuallymakenightlyvisitsdownstairsasidefromborrowingtheoccasionalcupofsugar?HowDIDFlorinda'sletteropenerendupstuckinthedeadneighbor'schestanyway?Thecomplexplotunfoldsamidstredherrings,outlandishdreamsequences,lesbianhankypanky,andominousclose-upsofFlorindaBolkan'sguilt-riddenfacialexpressionseverytimesomeonementionsthemurder.Allthistakesplaceinswinginglate-1960'sLondon.