In1960sEngland,BlakeCunninghamandhisalcoholicmotherareforcedtomoveintothemysteriousClemonteHall,avastisolatedmanorhouse,tocareforhisdyingGrandfatherwhoresidesintheatticroom.Soon,ghostlygoings-onfillthehousewithdread,asitbecomesapparentGrandfathersillnessmayhaveasupernaturalcausethatcanonlybecuredbyuncoveringtheterrifyingsecretsofthehouseanditsdarkhistory.