A meek 20-something woman finds herself at the wrong place and time when her boyfriend was murdered by a serial killer in which she didn’t commit.

I revised it.

Ah, Romance genre? ... murder, mystery, false accusations ... usually genre = Thriller

Ok, so we have one "woman" - lets give this woman some shape. Age, race, nationality, height, hair color ... you get the picture, right!

Then there's my favorite - psychology. Is this a strong woman, cause if so, she will react very differently to a murder scene, than say, if she was a meek person.

Finally, who did commit this mystery murder - remember loglines are a short synopsis - not marketing.