The unbearable lightness of being / Kundera, Milan

A story of two couples: One, a young woman in love with a womanizer; the other, one of his mistresses and her humbly faithful lover.

Tomas, a hopeless philanderer and successful surgeon, flees Prague when the Russians invade in 1968 and heads for Switzerland where he must provide for himself and his lover by working as a window washer.