Jealous of her vapidly "good" sister's popularity, poisonous Viktoria doses pretty Klara's tea with a slow-acting fatal substance. As the latter grows hysterically weak, the former finds success increasingly compromised by guilt, blackmail, and the pesky need to kill others lest she be exposed.

Cast:Iva Janžurová, Josef Abrhám, Nina Divíšková, Petr Čepek, Josef Somr, Jiří Kodet,

Genre:Mystery, Horror, Drama,

country:Czechoslovakia,

Production:Filmové studio Barrandov,