Ben új betegével Biancával (Mageina Tovah) találkozik, akit megszállottan érdekel a „gyilkos ház” története. Ben egy hívást kap ex-barátnőjétől Haydentől (Kate Mara) aki bevallja neki, hogy terhes és szüksége van a lelki támogatására az abortuszhoz. A pszichiáter hazudik feleségének, Viviennek, hogy megoldja múltja problémáit.

Vivien learns the horrific truth about the house's first residents and Ben's visitor causes him to further unravel about what really happened in the haunted house. Constance and Moira have their history revealed.

The line between the living and the dead blurs on Halloween. Two of the house's previous residents give the Harmons decorating advice.

Tate comes face to face with his past, and Ben and Vivien are haunted by a new houseguest before Halloween night comes to an end.

The man in the rubber suit is revealed.

One of history's most famous murder victims pays the house a visit. Constance discovers more of Tate's bad behavior.

Vivien gives birth. Tate and Violet attempt to rid the house of some of its ghosts for good.

In the aftermath of family tragedy, Ben tries to take his child out of the Murder House. Meanwhile, Violet and Vivien accustom themselves to their new living arrangements, Constance raises Tate's child as her own and a new family buys the house.