American Horror Story (2011)

 Season one

The first season centers on the Harmon family: psychiatrist Ben , his estranged wife Vivien , and daughter Violet . They move from Boston to Los Angeles after Vivien had a stillbirth and Ben had an affair with one of his students. On arrival, they learn that the previous owners of their new mansion - a gay couple - apparently died in a murder/suicide. Their neighbor Constance and her daughter Addie become frequent, if sometimes unwelcome, guests. Addie, who has Down syndrome, seems to have a supernatural connection with the house's mysterious past. Upon exploring the attic, Vivien discovers a gimp suit. The house also 'comes with' Moira O'Hara , a housekeeper who to men appears as young and seductive, but to women old and matronly.

Ben begins seeing patients out of his home office. One in particular, the possibly psychotic Tate Langdon , takes a keen interest in kindred spirit Violet. Ben is unaware that Tate is both a ghost and the son of Constance. As the family settles into the home, bizarre and often violent events begin to occur with increasing regularity. It is soon revealed that there have been upwards of 20 violent deaths in the home over the course of its history - so much so that it is known on sightseeing tours as "The Murder House". The family struggles with their own personal tribulations, oblivious to the reality of their home even as more people die and take up residence as ghosts. Unknowingly, Vivien has sex with Tate whom she mistakes for Ben in the rubber suit, shortly after making love with Ben, resulting in the rare occurrence of becoming pregnant with twins by different fathers. Several ghosts in the house, including that of Ben's former mistress Hayden, conspire to drive Vivien mad so that they can raise the babies as their own.

Violet commits suicide, something she doesn't realize was successful until weeks later when she realizes she cannot leave the house. Vivien gives birth to the twins in the house. The first dies moments after birth, but the second lives. Vivien dies during labor. Constance realizes that the surviving baby's father is Tate, and urges Ben to flee the house. In so doing, Ben is confronted by Hayden who murders him by forcibly hanging him. Upon finding Ben's body, Constance abducts his baby. Ultimately it is believed by the police that Ben hanged himself in grief, and Violet ran away with the baby.

Now trapped in the house, Ben and Vivien vow to work with some of the other ghosts to scare away any new tenants and spare their lives, and successfully do so with the next family that moves in. The series then jumps ahead three years to reveal that Constance has continued to raise the Harmons' son in secrecy. She discovers, however, that he has violently murdered his nanny.

 Season two