Previous Episode Recap, in 140 Characters:

AHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH

— Rembert Browne (@rembert) July 25, 2012

Hanna is at home, doing her girly Hanna thing, and then — knock knock — it's her best friend, the Detective. He's just in the neighborhood to let her know that they need a blood sample. There's new evidence and the blood on the anklet matches her blood type. You know, O NEGATIVE. Also, multiple witnesses saw Hanna leaving that hospital room where she switched the notes. Hanna denies everything, but she knows she's screwed. Good grief is the Detective good. He might actually get her one of these seasons.