There are the usual vampires, we know about them from books and movies. They exist and have substance, yet when they walk by a mirror, there is no reflection.
Then there are emotional vampires. There is nothing at their core; their lives are spent creating a reflection that represents what they want to believe they are, or perhaps what someone has convinced them they should want to be.
It doesn’t matter which.
They live among us but we don’t notice them until it’s too late.