Based on a True Story is a delightful dark comedy thriller on Peacock that fits right in with the latest influx of modern whodunit shows that poke fun at societal obsession with both true crime and podcasting. It combines these loves into one hilarious story about a couple expecting their first child, dealing with life challenges, and finding opportunities in the most unlikely of places. They have discovered the identity of a local serial killer, and it just so happens to be someone they know.