Jiří Kollinger

Based on the novel by Karel Capek, the prominent Czech writer of the early 20th century who coined the word robot for his play R.U.R., the story revolves around a discovery of Krakatit - a powerful explosive - by Prokop, an experimental scientist who, following an accidental explosion in his lab, slips in and out of delirium. When he realises that, in a delirious period, he has given the formula for making Krakatit to one of his colleagues, he tries to find the man, who does not realize how dangerous a thing Krakatit is. In the process, he nearly gives his discovery away again to foreign interests, a group of anarchists, and even greater forces of darkness...

An ambitious and selfish lawyer confesses to the murder of his first wife. Some of the scenes were filmed in the last weeks of the war.

Leopold Kohák married a rich widow a long time ago and now has nothing to do compared to his energetic wife. He's growing old and troubled by the fact that he betrayed his first love Emča and his beloved river Sázava where he spent his childhood and youth. A visit from an old friend Lebeda brings it all back to him. After a nervous breakdown Leopold secretly visits his home instead of going to the spa. A wandering tramp suggest Leopold should bathe in the magical waters of the Sázava, and slowly his youth returns to him.