The film also features several notable actors in supporting roles, including John R. Leonetti, Taylor Nichols, and Shannon Cook.
The film begins with a prologue where the Warrens investigate the infamous house in 1976. During a séance, Lorraine experiences a terrifying vision of a demonic nun (Valak) and sees a premonition of Ed's death.
: Ed and Lorraine Warren travel to London to help a single mother and her four children plagued by malicious spirits in their home.