The Conjuring 2 is based on the real-life story of paranormal investigators Ed and Lorraine Warren and their investigation into a haunted house in Enfield, London. The film begins with a prologue that showcases the Warrens' previous case, which was featured in the first film. The story then shifts to 1976, where we see the Perron family moving into a new home in Enfield. Shortly after, strange occurrences begin to happen, and the family seeks the help of the Warrens.

The Conjuring 2 received widespread critical acclaim, with many praising the performances of the cast, the direction, and the scares. The film holds a 79% approval rating on Rotten Tomatoes, with an average rating of 6.7/10. On Metacritic, the film has a score of 65 out of 100, based on 37 reviews, indicating "generally favorable reviews".

Upon investigating, the Warrens discover that the house has a dark history and is haunted by a malevolent spirit, which they later identify as Bathsheba Sherman, a witch who made a pact with the devil. As the haunting escalates, the Warrens and the Perron family work together to uncover the truth behind the haunting and help the family reclaim their home.