Forty-year old housewife Rose is married to successful businessman Nikolay, while Konstantin Nevolin, a skilled aircraft designer, is dating a young and beautiful woman, Lisa. One rainy evening Konstantin and Rose accidentally meet and end up spending the night together. An indiscretion such as this could easily be forgotten, but our protagonists cannot continue with their lives in the same way. Konstantin cannot stop thinking about Rose, while Rose, although harboring similar feelings, tries to forget him by persuading herself that she is still happily married. However, any doubts Rose may have had about her marriage quickly disappear when she discovers that her husband has a lover,
