"The Conjuring 2: The Enfield Poltergeist" is based on the real-life events surrounding the Enfield Poltergeist case that occurred in the late 1970s in Enfield, England.

Here's the true story behind "The Conjuring 2: The Enfield Poltergeist":

In 1977, the Hodgson family, consisting of Peggy Hodgson and her four children, moved into a council house in Enfield, a suburb of London. Soon after moving in, the family reported strange and disturbing occurrences, including furniture moving on its own, unexplained knocking and tapping noises, objects being thrown across rooms, and the children being levitated or dragged by an unseen force.

The phenomena attracted the attention of the media and eventually paranormal investigators, including Maurice Grosse and Guy Lyon Playfair from the Society for Psychical Research (SPR). They spent extensive time at the house documenting and investigating the strange events.

Some of the most famous incidents reported during the Enfield Poltergeist case include:

1. Levitation: Janet Hodgson, the second eldest child, claimed to be levitated from her bed on several occasions.
2. Voice Phenomena: Janet also claimed to be possessed by the spirit of an elderly man named Bill Wilkins, who spoke through her in a deep voice. Recordings were made of Janet speaking in this voice, which were analyzed by investigators.
3. Object Movements: Objects were observed moving seemingly of their own accord, including toys, furniture, and household items.
4. Physical Interactions: Witnesses reported being touched, pushed, or slapped by an unseen force.

The case gained widespread attention, with skeptics and believers alike debating its authenticity. Skeptics suggested that the incidents were either hoaxed or misinterpreted natural phenomena, while believers saw it as genuine evidence of paranormal activity.

In the film adaptation, "The Conjuring 2," the Warrens, Ed and Lorraine Warren, paranormal investigators, are portrayed as central figures in the case. While the film takes some creative liberties for dramatic effect, it generally follows the events as reported by the Hodgson family and the investigators.

Despite ongoing controversy and skepticism, the Enfield Poltergeist case remains one of the most well-documented and famous cases of alleged paranormal activity in modern history.