Whatisthesignificanceofyourlife?" AfterreceivingtheSNSmessage,deathhasbegun! Traineepoliceman,'Sung-min'(LeeSi-eon)andjobseeker,'Jun-hyeok(KimSung-cheol)'weresuspiciousaboutasuicideincidentofagirlwholivedinthesamedormitory,andtheywillbetrackingherSNSaccountwiththehelpofaprivatedetectiveagencyhacker,'Nu-ri'(HeoGayoon). Theinvestigationwhichstartedoutofchivalryleadstouncontrollableconsequences.Thesethreepeople,Jun-hyeok,Sung-min,andNu-ribecametargetsofSNScrime...
