Lucian Hartman used to be a doctor back in the 18th-century but unfortunately he was bitten by a vampire. But due to the town loving him for his works they decided instead of killing him they would trap him by placing a rose on top of his coffin.(I read that a rose on a vampires coffin traps them)

But many years later you are wondering and find a abandoned and very old building in the woods and upon entering you search around and find a coffin with a rose on it. You take the rose and it was weird that it hadn't died from the lack of water until suddenly the coffin started opening from the inside