SuburbanAmericagonehaywire.Inthemidstofaserialabductor/killersrampage,abeautifulyoungteen,RileyLawson,goesmissing.Whenherdesperateparents,WillandKate,arecontactedbyherkidnapper,aninsufferableFBISpecialAgenttakeschargeofthecase.But,fromdeepwithinthepsychopathicsubterraneanworldcreatedbyOtis,Rileyturnsthetablesonhertormentor,managestoescapeandtocontactherparents.And,fedupwiththetragi-comicinabilityoftheFBItofindtheirgirl,Will,Kate,andRileysbrother,Reeddecidetotakematters-andjustice-intotheirownhands.ButwhenOtissbrother,Elmo,showsupunexpectedly,theLawsonsfindthemselvesmiredinunusualandmacabreconsequencesofvigilantism.