There are a few horror films with daughter in the title (Daughter of Satan and Daughters of Darkness come to mind). I don't disagree that it does seem like it could be a drama. And it's that bit of genre dissonance that makes it seem more interesting.
Say you're looking for a horror movie. There are countless titles with death and blood and the devil. Anything that seems a little unusual is going to stand out from the crowd.
If you don't like it, you don't like it, but don't be afraid to be "soft" in the title. Contrast is a good thing, and can make the total package that much more intense!