Young and penniless, Kif Kehlmann is rung in the middle of the night by notorious con man and corporate criminal Siegfried Heidl. About to go to trial for defrauding the banks of $700 million, Heidl proposes a deal: $10,000 for Kehlmann to ghostwrite his memoir in six weeks. Kehlmann accepts but soon begins to fear that he is being corrupted by Heidl. Is he ghostwriting a memoir, or is Heidl rewriting him? As the deadline draws closer, everything that is certain grows uncertain as he begins to wonder: who is Ziggy Heidl - and who is Kif Kehlmann?.