Friends growing apart happens, but creatures crashing a fantasy convention... not so much. Five high schoolers bonded over the Bloodthirsty Hearts novel series turned slightly-erotic movie franchise as kids, and now it's what brings them back together for the first-ever fan convention. However, what starts as fun and games quickly turns into a fight-for-your-life event as creatures from the same universe invade. Will the childhood friends be able to work past their differences and survive the night? Perhaps their shared obsession will prove to be useful after all.