Several years have passed since lawyer Joachim Vernau successfully thwarted the masterminds of a murder plot. His joint law practice with Marie-Luise has long since been dissolved. Unexpectedly, a distress call from Poland changes everything: Marie-Luise, hospitalized and accused of murder, maintains her innocence. Her alleged victim is Horst Schwertfeger, a transient German laborer. Vernau travels to Poland, determined to clear her name.
