When her young son Nikolai disappears without a trace in the subway, German journalist Katharina Wagner suddenly realizes that she has powerful enemies in St. Petersburg. She has returned to show her child his father's grave – but did her husband Viktor really take his own life, or did he stir up a nest of scorpions that ultimately killed him? Katharina has few allies in her fight for Nikolai, but then it becomes clear who is truly on her side.
| Actor | Role |
|---|---|
 Katharina BöhmKatherina Wagner | Katherina Wagner |
 Heinz HoenigAdam Markowski | Adam Markowski |
 Wolf RothWolfgang Fischer | Wolfgang Fischer |
 Hansjürgen HürrigAlfred Scherenberg | Alfred Scherenberg |
 Merab NinidzeAlexej Romanowitsch | Alexej Romanowitsch |
 Horst-Günter MarxGrigori Rubinstein | Grigori Rubinstein |
 Roman KnižkaJuri Schukow | Juri Schukow |
 Klaus OfczarekBoris Sorokin | Boris Sorokin |
 Laura OsswaldNatascha Koslowa | Natascha Koslowa |
| EEmil KafitzNikolai Wagner | Nikolai Wagner |
| LLucia GailováJelena Dimitrowa | Jelena Dimitrowa |
| MMilan KnedlikViktor Kunin | Viktor Kunin |