Chatfah,theyoungestsisteroftheBupphachindafamily,hasjustreceivedthelargestshareofherfathersinheritanceandisabouttobemarried.However,Chatfahfallsfromthehighestfloorofavacationhometoherthreeoldersistersshockedeyes.Whenherbodydisappears,herthreesisters—Baibua,Chomphu,andPicha—becomesuspectsinherdisappearance.TheeldestsisterBaibuaiscomposed,wise,andhasalwayssacrificedforherfamily.Thesecond,Chomphu,isaconfidentmodelwhoseboyfriendChatfahstoleandwasengagedto.Thethird,Putpichaya,isajewellerydesignerandtheclosesttoChatfah.ThethreesearchforChatfahwhilefurthertragedybefallsthemfollowingtheiryoungestsistersdisappearance.Whennooneelsecanbetrusted,thethreesistersmusttrytotrustoneanother.TheymovebacktotheirchildhoodmansiontofindoutwhowasbehindChatfahsdisappearance,whichcouldverywellbeoneofthem.