Heyo another idea here.
I'll be honest, there's not much to this thought yet. I have spent more time on coustume design/character appearence then actual story but yeah.
There is a woman, I'm thinking around the age of 23-25. She was recuited into a brach of government long ago when she was just a child for her extrodinary abilities. She can walk through dreams. Or she believes that's what she does. She is used as a weapon fore she can unlock the minds inner demons, and most importantly, secrets. Ever since she arrived at the compound at the age of 6 she had earned the nickname of The vagabond, or more comonly The Walker.
Her counterpart, called various things (Nightmare, Phantom, Nyx, Nite) has been stationed at the facility for as long as she can remember. He was there long before her, kept for his own special power. Few of which she actually knows. What everyone is for certain about tough, is that Nite is to be feared and not played with. Seeming to be the opposite of his partner, he can inflict mental and physical damage when he pleases.
That's about it for now. If I think up anything more for this idea I'll be sure to add the details.