A trailer for "The Exorcist: Martyrs" was unveiled Friday at New York Comic Con, with Scarlett Johansson taking on a role tracking a demonic killer. The film is directed by Mike Flanagan and acts as both a sequel and a reboot of the long-running horror franchise.

Flanagan says the project leans into "The Exorcist III" and describes it as the scariest thing he has ever made. He told reporters the film was designed to feel dangerous and that it made him deeply uneasy during production.