7 , ▁ 2 0 0 7 . ▁It ▁is ▁the ▁fif teenth ▁episode ▁and ▁the ▁six teenth ▁episode ▁to ▁be ▁released ▁on ▁DVD . ▁ ▁Plot ▁A ▁young ▁married ▁couple , ▁Cel ia ▁( M ered ith ▁Mon roe ) ▁and ▁David ▁( M att ▁Ke es lar ), ▁move ▁into ▁a ▁new ▁home ▁and ▁meet ▁their ▁seem ingly ▁v ener able ▁neighbor ▁Harold ▁( Ge orge ▁Wend t ). ▁Harold ▁is ▁in ▁fact ▁a ▁psych otic ▁k iller ▁who ▁has ▁created ▁a ▁family ▁using ▁the ▁ske let ons ▁of ▁his ▁former ▁vict ims . ▁His ▁family ▁consists ▁of ▁a ▁wife ▁and ▁a ▁daughter , ▁and ▁later ▁a ▁father ▁and ▁a ▁mother , ▁all ▁of ▁whom ▁Harold ▁seems ▁to ▁believe ▁are ▁fully ▁alive . ▁He ▁dress es ▁them ▁in ▁cl othing , ▁moves ▁them ▁around ▁the ▁house , ▁and ▁tal ks ▁with ▁them ▁as ▁if ▁they ▁can ▁talk ▁back . ▁He ▁also ▁hall uc in ates ▁that ▁a ▁te en age ▁girl ▁was ▁asking ▁him ▁to ▁kill ▁her ▁so ▁his ▁" d augh ter " ▁could ▁have ▁a ▁sister , ▁and ▁at ▁dinner , ▁he ▁he ars ▁Cel ia ▁express ▁a ▁desire ▁to ▁have ▁rough ▁sex ▁right ▁there ▁on ▁the ▁table . ▁There ▁is ▁also ▁the ▁hint ▁that ▁he ▁rep laces ▁family ▁members ▁when ▁he ▁finds ▁a ▁new ▁victim . ▁ ▁Cel ia ▁and ▁David , ▁however , ▁have ▁a ▁secret ▁of ▁their ▁own : ▁years ▁ago , ▁Harold ▁killed ▁their ▁daughter , ▁and ▁they ▁have ▁been ▁tracking ▁him ▁down ▁ever ▁since