The Penguin has spent its first three episodes teasing Sofia’s escapades as the infamous Hangman serial killer, an adaptation of the comics canon “codename” she earned in Jeph Loeb and Tim Sale’s Batman: Dark Victory by committing a string of calling-card murders.

The Penguin Episode 4 “Cent’Anni” finally revealed the dark backstory of Sofia Falcone (Cristin Milioti) and the events that led to her being committed to Arkham Asylum for ten years. While getting that pivotal piece of backstory,

It feels counterintuitive, but it’s quite a joy knowing that you don't have to hunt through The Batman spin-off looking for Easter eggs. Here's a great example: The Penguin episode 4 took viewers to Arkham Asylum and didn’t show us the Joker.