
Season 4 · Finale
Monster: The Lizzie Borden Story ending explained
Updated
Spoilers ahead
This page discusses the Season 4 finale, including who the series says committed the killings, what happens to Emma and Maggie after the trial, and the last Aileen Wuornos scene. The episode guides stay lighter; this page does not.
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The short version
The show depicts Lizzie Borden and Bridget “Maggie” Sullivan as the killers of Abby and Andrew Borden. Lizzie is still acquitted — that part is history. After the trial, Emma leaves, Maggie comes back, and the series gives them a later life together. The last image is invented: after Aileen Wuornos is executed, Lizzie and Maggie meet her in a constructed afterlife and tell her that all is forgiven.
What the show decides
Earlier hours already answered the anthology's engine — “did she do it?” — on screen. Carnival does not reopen the investigation. It asks what an acquittal is worth once the town has turned the case into a rhyme, a costume, and a shelf of books Lizzie cannot get pulled.
Emma has had enough of living inside that legend and leaves, telling Lizzie she hopes the truth is admitted someday. Maggie, who had gone back to a husband the series treats as another trap, returns through the front door and stays. Lizzie prays for forgiveness she did not ask for in court. The two of them are then shown as partners and suffragists — a second act the show chooses for them.
What the 1893 jury decided
On June 20, 1893, a New Bedford jury acquitted Lizzie Borden of both killings after a short deliberation. No one else was charged. The case is still legally unsolved. That verdict is the one public fact the finale cannot rewrite, and the series keeps it.
History after the trial is thinner than the show. Lizzie and Emma did move to a house later called Maplecroft, and they later became estranged. Lizzie Borden died in 1927. There is no reliable record that she and Bridget Sullivan lived afterward as partners or campaigners. Treat those scenes as dramatization, then read the 1892 timeline if you want the documented case without the series' answer.
Why Aileen Wuornos is there
Sarah Paulson's Wuornos thread is a later-century invention. Aileen Wuornos was a real person, executed in Florida in 2002. She has no documented connection to the Borden household. The series uses her as the other end of a question Ian Brennan has said the anthology keeps asking: whether a “monster” is born or made.
The last scene makes that argument as image, not evidence. After the lethal injection, Wuornos opens her eyes and finds Lizzie and Maggie waiting to take her somewhere safe. “All is forgiven. All is understood.” Then the gallery curtain closes on the actual execution. The grace is the show's. The flatline is history.
What not to take from the finale
- The series' on-screen confession is not a newly discovered fact about 1892. It is a dramatic choice.
- The jump-rope rhyme is still folklore. Its body counts are wrong, and it presumes a guilt the jury did not find.
- Wuornos meeting Lizzie is fiction. Do not repeat it as biography of either woman.