Legion : The Final Exorcism (2006)

Michael San Chica, a former priest turned investigator, focuses on uncovering the reality of demonic possession. When he intervenes to help Tatiana McMurter, the daughter of a Baptist minister who has recently become possessed, he realizes he’s facing a demon he has encountered in the past. This particular demon is one he had promised to hunt down and banish to hell. This time, however, it’s not just part of his work; it’s deeply personal for him.