One ending concept.

One of our endings for our film would be for the main character (the one obsessed with the book) dying. A way we could do this so that it is entirely different from the deaths of the other characters would be to make it look like she was dying internally rather than from something else. A way which i think we could do this would be to make her bleed out of her eyes. 

Although this could be very hard to do it would be very effective.

Another way we could do it would be to make her cough up blood, which is the simpler option and could be just as effective if done correctly.