The Sun in a Net is a lyrical story about the emotions arising between two young people who pretend cynicism and rejection of society in an attempt to hide their insecurities, lack of experience and fear of adult life. It is the very first film in the history of Slovak cinema to take on the theme of the natural differences of values and social life in urban and rural settings. The film is considered the beginning of the New Wave in Slovak and Czech cinema of the 1960s.

Slovakia during WW2. Tono lives a poor life, but the authorities offer him to take over the Jewish widow Lautman's little shop for sewing material. She is old and confused and thinks that he is only looking for employment and hires him. The odd couple begin to like each other. But some time later the authorities decide that the Jews must leave the city. What should he do with the old lady?