Fueled by an encounter with a haunted house, a novice paranormal investigator battles the supernatural for those with nowhere else to turn with her reluctant best friend.
Feels like a TV show not a film. You have set up a world (TV) and not a story (film).
A paranormal investigator that helps the desperate finds a woman that ………..
You have pitched a character not a story. If that is all you have at the moment (which is okay) write a story for them.
I know you have tried quite a few loglines. However, this attempt is a little awkward in its wording.
“When his brother is killed by an evil spirit, a novice paranormal investigator and his best friend search for clues as to what killed him while helping others struggling with supernatural forces.”