In 2014, a New Jersey family bought their dream home. Days later, they began receiving terrifying letters from someone who claimed to be “The Watcher.” The messages described their children, their movements, and the history of the house and signed off with chilling threats. Who was watching 657 Boulevard… and why? In Episode 15 of Threads of Truth, we examine the real-life case behind the viral Netflix series, unpack online sleuth theories, and ask: was it a neighbor, a hoax or something more sinister?