Paul Norwood

As Halloween approaches, Susan is forced to reveal her secret to a shocked Mike, Juanita becomes suspicious of Gabrielle's sudden interest in Grace, and Lynette is concerned about Tom's mother's memory lapses. Elsewhere, Bree learns a secret about Keith, and Paul is encouraged to take Beth out on a date in order to light a spark in their married life.

"Grey's Anatomy's" three-episode story arc continues with a part two that will challenge the interns of Seattle Grace -- and "Grey's" fans as well -- like never before.

Beginning February 8, “Grey’s Anatomy” enters a three-episode story arc that will challenge the interns of Seattle Grace -- and "Grey’s" fans as well -- like never before. Elizabeth Reaser (Independent Spirit Award nominee for "Sweet Land") guest stars as a patient over multiple episodes.

The teams search for what they believe to be two killers who torture and murder young women and then send DVD recordings of their crimes to the victims' mothers.

As Emily's blackouts grow increasingly violent, her only hope lies with the person she betrayed most. Elsewhere, Victoria makes a drastic move to deal with someone from her past.