Dichen Lachman, who plays Gemma/Ms. Casey on 'Severance,' unpacks this week's heartbreaking episode and explains Gemma's escape plan.

How did Gemma end up in the Lumon building? What is the nature of the experiments they're running on her? Is Miss Huang somehow the daughter of Mark and Gemma? Let's dive in!

(Adam Scott)—who underwent the severance procedure that separates his working self (“Innie”) from his personal self (“Outie”) after his wife Gemma (Dichen Lachman) died—desperately tries to tell his sister that Gemma isn’t dead after all.