The story follows Iris , another Blade Runner, on an assignment to find Tyrell's owl, which seems to have special importance for the Tyrell Corporation and other dubious organizations. The book begins with an "out-take" section, written as a movie script, which describes the scene from the original movie in which Leon is subjected to the Voight-Kampff test. However, in this version, the blade runner performing the test is a woman, and Leon kills her at the end of the test. The section ends with an unknown person commenting "This one didn't work, either; we'll have to try another one.."