Karen Bender is a plastic surgery expert who will soon be promoted to Senior Physician. Her family life with her husband Christoph and little daughter Kim could hardly be more harmonious. However, when a routine check-up reveals that the seven-year-old is a lethal tumor, Karen is unexpectedly caught up in her past: Professor Victor Novak, an internationally renowned neurosurgeon, is the only one who can save Kim's life. But years ago Karen had an affair with Viktor during a joint engagement in the Balkan war.
The wife and her ex did not really kiss or have sex. At least it wasn't shown. The husband only saw them having an intimate moment, their noses touching each other's while the ex caressed the wife's face (1:10:00).