After scaring audiences with The Conjuring and its sequel, filmmaker James Wan explores another dark corner of the franchise, with a peek at the upcoming spinoff The Nun.

In the film, a young nun in Romania takes her own life, so a priest with a haunted past and a novitiate on the threshold of her final vows are sent by the Vatican to investigate. Once there, they uncover the order’s unholy secret. Ultimately, the will have to confront a malevolent force who has taken the form of the same demonic nun that first terrorized audiences in The Conjuring 2.

Take a look at the first teaser trailer up above.

The Nun opens in theaters on Sept. 7.