▁of ▁Qu ilty ▁( an onym ously ) ▁go ading ▁Hum bert ' s ▁conscience ▁on ▁many ▁occasions , ▁though ▁the ▁details ▁of ▁how ▁this ▁theme ▁is ▁played ▁out ▁are ▁quite ▁different ▁in ▁the ▁film . ▁He ▁has ▁been ▁described ▁as ▁" an ▁em an ation ▁of ▁Hum bert ' s ▁guilty ▁conscience ", ▁and ▁Hum bert ▁describes ▁Qu ilty ▁in ▁the ▁novel ▁as ▁his ▁" shadow ". ▁ ▁The ▁first ▁and ▁last ▁word ▁of ▁the ▁novel ▁is ▁" L ol ita ". ▁As ▁film ▁critic ▁Greg ▁Jenkins ▁has ▁noted , ▁in ▁contrast ▁to ▁the ▁novel , ▁the ▁first ▁and ▁last ▁word ▁of ▁the ▁screen play ▁is ▁" Qu ilty ". ▁ ▁Cont empl ating ▁murder ▁of ▁Charlotte ▁Haz e ▁In ▁the ▁novel , ▁Hum bert ▁and ▁Charlotte ▁go ▁sw imming ▁in ▁H ourg lass ▁Lake , ▁where ▁Charlotte ▁announ ces ▁she ▁will ▁ship ▁Lo ▁off ▁to ▁a ▁good ▁board ing ▁school ; ▁that ▁part ▁takes ▁place ▁in ▁bed ▁in ▁the ▁film . ▁Hum bert ' s ▁cont empl ation ▁of ▁possibly ▁killing ▁Charlotte ▁similarly ▁takes ▁place ▁at ▁H ourg lass ▁Lake ▁in ▁the ▁book , ▁but ▁at ▁home ▁in ▁the ▁film . ▁This ▁difference ▁affect s ▁Hum bert ' s ▁cont empl ated ▁method ▁of ▁killing ▁Charlotte . ▁In ▁the ▁book ▁he ▁is ▁tempt ed ▁to ▁d rown ▁her ▁in ▁the ▁lake , ▁whereas ▁in ▁the ▁film ▁he ▁cons iders ▁the ▁possibility ▁of ▁shooting ▁her ▁with ▁a ▁p istol ▁while ▁in ▁the ▁house , ▁in ▁both ▁scenarios ▁con cluding ▁that ▁he ▁could