Echo Chamber

Maya Vance, 34, was once the celebrated host of Grave Doubts, a podcast that exonerated two wrongfully convicted inmates. Then she fabricated evidence to close a third case, got exposed, and lost everything. Now, scraping by as a freelance transcriptionist, she's given an invite code to Echo by an anonymous source who claims the app can restore her career - if she dares to listen. The first time she points it at a murdered Jane Doe's yearbook photo, she hears the victim's final plea: "Please, not my daughter, take me instead." The audio contains a distinct background noise - a ship horn.
In 48 hours, Maya locates the killer's boat, records her investigation, and drops a podcast episode that goes viral. Fame reignites. The app's toll is minor at first: she forgets an old phone password, then her grandmother's recipe. She dismisses it.