Vivien and Violet find themselves in a dangerous situation eerily similar to a past event. Ben goes back to Boston to fix a mistake.
Halloween night concludes with Tate coming face to face with his past. Ben and Vivien are haunted by one of the house’s newest guests.
House's love interest and verbal sparring partner is put under the proverbial microscope. It's a day in the life of Dr Lisa Cuddy, and it proves to be eventful.
Constance enlists Violet’s assistance with Tate. Ben helps a new patient confront his fears.
Vivien gives birth. Tate and Violet attempt to rid the house of some of its ghosts for good.