<Tr> <Th_colspan="2"> External links </Th> </Tr> <Tr> <Td_colspan="2"> Website </Td> </Tr> <P> The Alienist is an American period drama television series based on the novel of the same name by Caleb Carr . The ten - episode limited series first aired on TNT as a sneak peek on January 21, 2018, before its official premiere on January 22, 2018, and ended on March 26, 2018 . The series stars Daniel Brühl, Luke Evans, and Dakota Fanning as an ad hoc team assembled in mid-1890s New York City to investigate a serial killer who is murdering street children . The series incorporates fact with fiction by including the characters that are historical figures, such as Theodore Roosevelt, who held the post of police commissioner from 1895 to 1897 . On August 16, 2018, TNT ordered a sequel series based around the follow - up novel The Angel of Darkness . </P> <P> The psychological thriller drama is set in 1896, when a series of gruesome murders of boy prostitutes has gripped New York City . Newly appointed police commissioner Teddy Roosevelt calls upon Dr. Laszlo Kreizler, a criminal psychologist and John Moore, a newspaper illustrator, to conduct the investigation in secret . Joining them in the probe is Sara Howard, the headstrong secretary to the police commissioner, as well as the Jewish twin brothers Marcus and Lucius Isaacson, both detective sergeants in the NYPD . </P>

How many seasons of the alienist are there going to be
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