Evil Summoned is based on the true story of how paranormal investigators Ed and Lorraine Warren are called to help the Perron family on an isolated farm threatened by a dark force.
Out of the thousands of cases of supernatural phenomena they have investigated, in the latter they are faced with an exciting and powerful demonic force in the most terrifying case of their lives. Everything Lorraine sees, feels or touches leaves a mark on her. The house is full of ghosts, and one is particularly worrying, the one that has attached itself to the family and is full of hatred.