Well, it's inspired by real-life cases but the movie adds a lot of fictional elements for entertainment purposes. The basic premise might have roots in reality, but it's not a 100% accurate account.
Yes, it is. The Conjuring series in general takes inspiration from the real - life paranormal investigations of the Warrens. In 'The Conjuring 3', they deal with a particularly disturbing case that actually happened, though of course some elements might be dramatized for the movie.
Yes, 'The Conjuring' series is often based on real - life cases of the Warrens. So, 'Conjuring 4' is likely to draw inspiration from some true events that the Warrens were involved in.
Yes. 'The Conjuring' series is often inspired by real - life cases of the Warrens. Each movie in the series takes elements from their investigations into the paranormal.