When his wife storms out of a dinner planned for the American boss, because the dog isn't allowed to be at the table, an engineer substitutes his secretary and pretends she is the wife.

The life and work of the pioneering scientists, told through the words of Marie Curie.

The wife gets up, runs to the clock and seeing the time, hurriedly awakens her husband. They will miss the train. In their hurry they cannot find their clothes, madam starts to put on her vest when it immediately changes to the husband's pants, the same happens to the husband. They quarrel and throw all the clothes upon the floor. During the struggle they both fall and upon rising again they are fully dressed, but as they go out, they discover that they are dressed in each others clothes. Another quarrel ensues, and they are again in their night garments. In desperation they run away followed by their clothes.

Rainer Dulsky, a professor of psychiatry from Switzerland, comes to Melania, the granddaughter of Mrs. Dulska. He feels he’s got something in common with the tenement house in which the Dulski family live... Melania, a film director, intrigued by her family history joins Rainer in his research. Their discoveries will take them back to the past full of secrets that were meant to stay hidden forever. The Dulski family have much on their conscience...

How did Sarah and Victor get along for more than 45 years? Who was this enigmatic woman living in the shadow of her husband? Love, ambition, betrayals and secrets feed the story of this extraordinary couple, as they experience both the large and small moments of the last century's history.