"Demonic presence" refers to the belief or perception of evil spirits or supernatural entities being nearby. It suggests that something sinister or malevolent is present or has an influence on a particular situation or place. Full definition
Except for the excessive and paranoid rules around character, behavior, church attendance, finances, thoughts, feelings, child rearing and the possibility of demonic presences in your home and contents! (nakedpastor.com)
Patrick Wilson (Prometheus, Watchmen) and Vera Farmiga («Bates Motel», Safe House) co-star as renowned «demonologists» (aka, paranormal investigators) Ed and Lorraine Warren, who regularly check out people's homes in order to determine if the strange sights and sounds they are hearing at night are the result of demonic presence, or easily explainable everyday phenomena. (qwipster.net)
The facility's AI overseer declares a lockdown with the phrase, «Demonic presence at unsafe levels.» (darkstation.com)