is a 2007 anime series directed by Takahiro Omori and produced by Brain's Base and Aniplex.
The 16 episodes are adapted from the light novels of the same name written by Ryohgo Narita and illustrated by Katsumi Enami.
[1][2][3] Told in out-of-order sequences, the story spans three consecutive years of Prohibition-era America during which three seemingly unconnected events occur: two bottles of immortality elixir are passed around Manhattan by gangsters believing it is alcohol, a supposed monster massacres members of two gangs attempting to hijack the transcontinental train Flying Pussyfoot, and a missing man is tracked down by his sister and a gang.
[2] The first thirteen episodes aired in Japan from July 26, 2007, to November 1, 2007, on WOWOW, a Japanese pay-per-view station, and the final three were released direct-to-DVD.
is licensed in the United Kingdom by Manga Entertainment and was released in a complete boxset on October 11, 2010.