Serial Productions makes narrative podcasts that have transformed the medium. Sign up for our newsletter at nytimes.com/serialnewsletter to find out about new shows, get behind the scenes stories, and see photos and videos you can’t see on a podcast. To get full access to Serial Productions shows, and to other New York Times podcasts on Apple Podcasts and Spotify, subscribe at nytimes.com/podcasts. Have a story pitch, a tip, or feedback on our shows? Email us at serialshows@nytimes.com "Serial" began in 2014 as a spinoff of the public radio show "This American Life." In 2017, we fo...