Sofia Falcone’s tour de force in this past Sunday’s The Penguin is all anyone can talk about. But did we miss something key about the real Hangman?

The following contains spoilers for 'The Penguin' Episode 3.Sofia Falcone (Cristin Milioti) has stolen the spotlight from Oswald (Colin Farrell) in The Penguin, becoming everybody’s favorite serial killer.

The Penguin Episode 4 explains how Sofia Falcone ended up in Arkham and became known as the Hangman – and it’s a big change.