15year-oldAlejandroDuran,whocomesfromareligiousLatinofamily,aspirestoonedaybeaCatholicpriest.ButwhenAlexdiscoversamysteriousboxheunwittinglyunleashesademonicspiritbentonpossessinghim.Alexmustfindawaytodefeatthisancientdemon,whichhasbeentormentingchildrensincethedawnofman,beforeitdestroyshimandeveryoneheloves.OnthesurfaceDevil'sWhisperisasupernaturalhorrorfilmaboutdemonicpossessionbutatitscoreit'sapsychologicalthrilleraboutrepressedmemories,childhoodtraumaandthecycleofabuse.