A flashback to 1968 shows the house being used as a dormitory for nursing students. While alone in the house late at night, nursing students Maria and Gladys are studying when a man rings the doorbell and asks for help. Noticing the man is bleeding from the head, Maria lets him in and begins to heal his wounds. When she realizes there is no actual cut on his head and that the man is faking his injury, the man attacks them both and overpowers them, forcing them to wear nurse outfits before drowning Gladys in an upstairs bathtub and stabbing a hog-tied Maria to death. Back in the present, Ben meets with Tate, who reveals his sexual fantasies about Violet. Ben sees a new patient, named Bianca, who is fascinated by the history of the murders in the house. He receives a call from his ex-mistress and former student of his, Hayden, who tells him that she's pregnant and she needs his support while having an abortion. Constance senses that Vivien is pregnant, and Vivien confesses that she fears there is something wrong with the baby. Constance assures her that her baby is fine, and confesses that three of her four children were born with some sort of birth defect. In order to see Hayden, Ben lies to Vivien, saying that he must go to Boston to see a patient. Violet reveals to Vivien that she knows about the pregnancy. That night, a trio of serial killer enthusiasts, Bianca, Fiona, and Dallas break into the house and capture Vivien and Violet. The trio plan to re-enact the murders of Maria and Gladys. Violet attempts to escape and runs into Tate, who tells her that she needs to lure the three into the basement. Violet manages to lure Fiona to the basement. Bianca eats cupcakes laced with ipecac syrup, which Constance had made earlier for Violet, and vomits violently. She is then killed by Tate. In the basement, Fiona encounters Tate with Gladys. Meanwhile, Vivien fends off Dallas and flees the house with Violet. Dallas and Fiona are killed by Gladys and Maria. Constance, Tate, and Moira agree to get rid of the bodies, revealing that they want Ben to continue treating Tate. Ben leaves Hayden at the abortion clinic and rushes home. Ben is upset to learn that Tate was in the house during the attack and feels Tate has crossed the line by becoming involved with Violet. Violet points out that Tate was there to help them, and Ben wasn't. Vivien resolves to sell the house.
Production
The episode was co-written by series co-creators Brad Falchuk and Ryan Murphy, while Alfonso Gomez-Rejon directed. Murphy spoke of Ben's leaving Hayden at the clinic at the end of the episode, and her character's future. "The interesting thing for that is I always like to leave a little room for surprise," he said. "Hayden comes in and certain things happen to her, and Kate Mara was so outstanding in the part that we just keep writing her in the writing room. The same with Lily Rabe as Nora . They just kill their scenes so much and the writers love writing for those women so we just keep bringing them back."
Reception
reports a 57% approval rating, based on 7 reviews. Matt Fowler, in his review for IGN, gave the episode an overall score of 8, saying "Home Invasion" was a "pleasant, twisted surprise" and praised the opening scene, stating, "What a horrifying opening scene! What a great style and terrifying tone it had to it." Emily VanDerWerff from The A.V. Club gave the episode a C grade, and said that she was "curious" about American Horror Story, and stated, "I spend plenty of time thinking about it, and some of the mysteries at the show's core have got me intrigued. In its original American broadcast, the second episode of American Horror Story was seen by an estimated 2.46 million household viewers and gained a 1.4 ratings share among adults aged 18–49, according to Nielsen Media Research. The episode dropped two tenths from the pilot episode.