The way that Clarice Starling stumbles upon the home of the villainous Buffalo Bill is one of The Silence of the Lambs’ most inventive twists. The cross-cutting between Clarice arriving at Bill’s house while Jack Crawford and his FBI Hostage Rescue Team go to the wrong location is one of the movie's most iconic moments. It sets the stage for the film’s nail-biting finale, shot in terrifying night vision, in which Clarice chases Bill into his underground lair. But it’s not conspicuous how Clarice managed to find Bill in the first place.

https://screenrant.com/silence-lambs-how-did-clarice-find-buffalo-bill/