It's a pretty good anime. I like it a lot so far. How dreams can come into the real world in the form of nightmares, going out of control due to the human heart. Two sisters fight these dreams, known as Yume Tsukai (Dream Catchers). Their aunt act as their supporter. 
They also have a eccentric pedophile friend who helps them as well. Later, another novice Yume Tsukai gets introduced into the series. For now, it's a deep and funny series. I recommend it.
