Does this logline sound interesting?

I've just had a sudden idea for a screenplay. I don't have any detailed synopsis yet, I'm just curious to know whether you guys think the logline is interesting enough to start working on it.

So here goes...

''When an introverted high schooler finds out that the school's most popular girl is about to kill one of the teachers, he starts stalking her to prevent the crime.''

Genre: thriller/drama (maybe some dark comedy, not sure though)