The Alienist is a psychological thriller set in 1896 about the hunt for a serial killer responsible for the gruesome murders of boy prostitutes that have gripped New York City.
Episode 1In 1800s New York, a boy prostitute is found butchered on the Williamsburg Bridge. Alienist Dr. Kreizler investigates the serial killer outside the law's reach.
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Episode 2The investigation heats up as Sara gets her hands on a clue. Tensions rise with the police department. Kreizler takes the team on a night out. Moore goes snooping at the brothel.
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Episode 3Moore crafts a theory. Sara attempts to live in a world outside the investigation. Ex-chief Byrnes checks in with an old friend. The team makes a gruesome discovery.
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Episode 4Kreizler and Sara discuss the capacity to kill. Moore goes on a date. Byrnes and Captain Connor keep an eye on a potential suspect. Roosevelt finds himself under public scrutiny.
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Episode 5The team learns more about the killer. Moore and Sara share an intimate moment. Kreizler seeks advice from an old mentor. Roosevelt takes action.
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Episode 6The team plans to catch the killer. Moore visits a friend. Kreizler battles self-doubt about the case. Roosevelt attends a high-society event with the city's elite.
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Episode 7Kreizler and Moore follow a lead. Sara visits a hospital and faces her past. Byrnes and Connor plot against the team while the Isaacson brothers work on a clue.
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Episode 8Kreizler and Moore travel to Washington D.C. Sara goes rogue in pursuit of the truth. Lucius tells Marcus a secret. Byrnes and Connor tighten their grip on the investigation.
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Episode 9Kreizler mourns the loss of a friend. Sara pushes the team to forge ahead. Moore warns his friend the killer will strike again. Cyrus seeks revenge.
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Episode 10Kreizler confronts the demons of his past. Moore tells Sara the truth. Connor takes matters into his own hands. The team closes in on the killer as time is running out.
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Episode 1In 1897 New York City, Sara Howard opens a private detective agency. She teams up with Dr. Kreizler and John Moore to find a kidnapped girl, uncovering corruption and deceit.
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Episode 2Sara uncovers a clue at Siegel Cooper. Moore struggles with personal life, Kreizler suspects the Lying-In Hospital, the Isaacsons find key evidence, and Byrnes plots against them.
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Episode 3At the Lying-In Hospital, Sara persuades Libby Hatch to talk. Kreizler uses hypnosis on Señora Linares, while Sara struggles with feelings for Moore and Cyrus hosts the team.
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Episode 4With time running out, Sara worries about Bitsy undercover at the Lying-In Hospital. At Hearst's ball, Sara and Kreizler confront a suspect, while the killer strikes again.
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Episode 5After Matron's murder, Sara, Kreizler, and Moore close in on the killer. They discover Sara’s headquarters isn’t safe, and she enlists Joanna to help track the murderer.
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Episode 6Sara and Moore return to the killer’s house, uncovering new secrets. Kreizler faces ruin after a tragic incident. The team must rescue another child, working with old foe Byrnes.
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Episode 7Sara, Kreizler, and Moore search Brooklyn for clues from the killer's past. Byrnes plans a double cross as the killer unravels and Sara and Moore face tough choices.
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Episode 8With New York in a manhunt, Sara, Moore, and Kreizler face police wrath and the deadly Duster gang as they race to save innocent lives from the killer’s rampage.
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