Serial

No true crime podcast has had a greater cultural impact than Serial. Sarah Koenig’s 2014 investigation into the 1999 murder of Hae Min Lee and the conviction of Adnan Syed became the fastest podcast ever to reach 5 million downloads, accumulating over 340 million total downloads. The show turned 'podcast' from a tech niche into a household word, and its public pressure contributed to Syed's conviction being vacated in 2022. Season 1 outperforms #2 My Favorite Murder in investigative rigor, setting the gold standard for audio storytelling.