Wow. I mean, down to the last detail. They captured Sarah Koenig's soft-spoken optimism, used Nicholas Thorburn's theme music, Santa Claus in a perfect Adnan voice, and they even took shots at the late Cristina Gutierrez.
The social phenomenon that is Serial inspired plenty of parodies, but this one wins them all. While SNL digital shorts can be hit and miss, this one is an instant classic.
(Oh, and if you still haven't listened to Serial, you can start right here or you can keep telling all your friends to shut the hell up about it already.)