Shortly after the events of Bats! Human Fluttershy has began mirroring vampric behaviour. Fluttershy, trying to isolate herself from her family, goes to camp out at Canterlot High. Her friends, however, have their own reasons for being there. She has to repress her new urge for blood until morning when, hopefully, thing will go back to normal. If not, then woe be unto all who cross Flutterbat.