We are already familiar with The Warrens so this is a continuation of their investigations into paranormal activities. This time, they are at a house where a child is possessed by a demon. He stabs his father in the leg. A priest arrives and the Warrens tell him to exorcise the kid. The demon is strong and he almost takes Ed(Patrick Wilson). Lorraine is affected by this. The demon goes from the boy who is called David, into his sister's boyfriend, Arne(Ruairi O'Connor), who is also there. Cut to Ed, who is in hospital after the ordeal. He has had a heart attack. He knows that the Devil has gotten Arne. Arne is acting strangely and he is also seeing things. Arne murders his landlord by stabbing him twenty two times. He claims that he was possessed when he did it. He is caught and arrested and put into prison, The Warrens believe that he was possessed when he committed murder.
There is a scene at the end where Ed puts a cup he got from Isla's altar into their museum along with their other creepy objects. We find out that Arne serves a short term in prison and marries his girlfriend.
He is apparently back to normal.
This was a pretty good film. I didn't think that it was as good as the first film or the second. Saying that, I liked it. These films are always quite good. If you enjoyed the other two, then you will enjoy this. The acting is fine. The story is interesting and there is enough to keep you entertained. I will give this a 6/10.