After an actual demon possesses his wife during rehearsals for a stage version of The Exorcist, a spineless director must fight his demonic spouse to save the cast and crew.

When an actual demon possesses his wife during rehearsals for a stage version of The Exorcist, a faithless director must conduct an exorcism to save his wife, the cast, and himself.
(31 words)

I've tried to combine the two loglines (forgive me if I know not what I do :)

'Faithless' rang better in my ears. Also, by adding the cast and himself, I felt the stakes rise, for it could kill them too.

Thank you.

Thanks Savino.

Great suggestion, thanks for that.

I was going for a coward needing to overcome his fears, but the theological angle could work too.

I like both loglines (Neer and dpg). Two totally different story directions though.

Or:

When a real demon possesses his wife during rehearsals for a stage version of The Exorcist, an atheistic director must learn how to conduct an exorcism in order to rescue her.
(31 words)

That is, play off the religious theme which is, after all, the central motif of the stage drama.

This is a logline for a mockumentary (fake documentary) I'm currently writing - it's aimed at being a contained horror-comedy.