While fighting for a woman who sits on death row, a lawyer happens upon new information which brings into question the motives of a man associated with her client

A young, idealist American gets a job as a train conductor for the Zentropa railway network in postwar, US-occupied Frankfurt. As various people try to take advantage of him, he soon finds his position politically sensitive, and gets caught up in a whirlpool of conspiracies and Nazi sympathisers.