Behind False Doors

The modern world is tough for a vampire who just wants to live his life unnoticed and unmolested. His friends age while he doesn't, he's got too many allergies and too many limits on what he can do. And even a vampire needs a place to live, so he's got to have a job to pay the bills.
When you can only work it night, it's tough to find a job, so when a position for a night janitor opens up at a nearby high school, he jumps on it. But it isn't long before he discovers that even a high school can have secrets.