When the city is devoured by war. A surviving girl on the verge of madness and a hungry old rat cross their lonely paths in order to find their salvation.

The problem with a logline like this is that I can’t see the promise of interesting, unique scenes.

We have seen many dystopian, post-apocalyptical films about single characters fighting to survive a cruel environment.
What makes this one unique and interesting to watch?

If the girl is on the verge of madness, it will be hard for an audience to identify with her. So what DOES make us care for her?
It could be her relationship to the rat. But then – unless the movie is animated – the rat has limited potential to become a real character, that the girl can bounce off.

You could give a little more detail about the war. Is it a real war from the past, or fictitious? Save on words by leaving out ‘surviving’.

Finally, what does ‘to find their salvation’ mean? It’s a generic theme phrase that doesn’t add much in terms of appeal, or even detail.