Nightmare Inspector, Volume 4 - Shin Mashiba

A mystical private investigation for the dream world.
Shadows Dreams on the menu in this volume: a man and woman trapped on a malevolent streetcar, a mysterious woman with a possible key to Hiruko's past, letters in a bottle that aren't the usual call for help, a young girl who dreams of a miserable future, a boy whose dreams could kill, and a nightmare in which Hiruko himself disappears!
For those who suffer nightmares, help awaits at the Silverstar Tea House, where patrons can order much more than just Darjeeling. Hiruko is a special kind of private investigator. He's a dream eater. And he'll rid you of your darkest visions...for a price.