The Dresden Files S01 E07 Walls

"If you need help, call the cops. If you need a miracle, call Harry Dresden"

Harry investigates the death of a college student which leads him to a most unusual ring of thieves. A group of students is using magick to commit a series of impossible thefts, and Harry must stop them quickly. Not only because what they are doing is wrong, but also because the magick will eventually kill them all.