Detective V. Ay. Warshawski had already begun to forget about the worries associated with the latest investigation, but when an insinuating voice on the phone threatened to throw acid in her face, she realized that new problems would appear in her life. The stern old aunt whom V. Ay. Warshawski agreed to help, suspected of forgery of shares worth millions of dollars that belonged to the Dominican Order. In and. Ay. Warshawski understands that her aunt is a real witch, but not a criminal, and soon the heroine smells falsehood in the holy of holies of the most influential organization in Chicago - St. Albert's Monastery. Now someone is looking to ship V. Ay. to the underworld. But the brave woman has self-control, a new Smith & Wesson and a daring plan with which she herself will send her enemies into the clutches of the devil.