Rodolpho Aranda, head of an Argentinian chemical company, is found murdered in a Berlin bookshop: An elderly librarian named Valerie Steinfeld poisoned him with cyanide and then took her own life. As the LKA was unable to establish any connection between the victim and the perpetrator, the motive for the crime remains unclear. When Aranda's son Manuel arrives to transfer his father's body to Argentina, the case is officially closed. Instead of an explanation, the young doctor only receives a sealed zinc coffin - the search for the truth is left to him.
Heino Ferch
as Manuel Aranda
Dennenesch Zoudé
as Irene Waldeck
Judy Winter
as Doppelagentin Nora Hill
Wolf-Dietrich Sprenger
as Kriminalrat Groll
Maria Mägdefrau
as Valerie Steinfeld
Elisabeth Rath
as Martha Waldeck, Mutter
Peter Kurth
as Grant, US-Geheimdienstagent
Nadja Becker
as Laura
Suzan Anbeh
as Yvonne
Edgar M. Böhlke
as Rodolpho Aranda
Annalena Duken
as Nora Hill - 1944
Christian Pätzold
as Siegfried
