Wrocław, 22 May 1963. Łucja Winter – an experienced intelligence officer – returns from a dangerous mission in India, the purpose of which was shrouded in secrecy. When it seems everything has gone well, a smallpox epidemic breaks out in the city. Wrocław becomes a closed city where a battle against a deadly and invisible enemy begins.

Ce synopsis est en anglais : nous ne l'avons pas encore traduit.