Half-Demon Priest Dragged to Hell

by Dave
(Falkiirk, Scotland)

A few months ago my brother saw a movie online about three preists that fight demons.

One of them dies early in the film, one is a half-demon who has to take special injections to stop the demon half from taking over. All three wear black suits, except the head demon who wears a red one. Some of them have horns.

The demons can't enter the church where the half-demon preist lives. He has some special power inside him that the other demons need.

In the final scene, the half-demon preist gets dragged to hell.

I have spent the last six weeks trying to find out the name of this movie. Please help me if you can - I'm desparate to see it again!