Sarah Simon, a successful editor at the renowned Cologne publishing house Rotberg Verlag, has managed to make a career for herself while raising a wonderful son, Tobi. Although her marriage to Tobi's father Oliver didn't last, they have been best friends since their separation. Sarah reckons she has a good chance of becoming editor-in-chief at Rotberg and accepts many an unloved task that Karl Rotberg, the head of the publishing house, throws at her. Including this one, the fulfillment of which Karl makes a precondition for the longed-for promotion: Sarah is to seek out Martin Herdecker, author of the bestseller "How to Find the Right Woman for Life". The promised manuscript of his new book, which is due to be published in time for the upcoming Frankfurt Book Fair, is a long time coming. Sarah's mission: find Herdecker and return with the manuscript. Sarah is outraged when she meets Martin Herdecker, who is as unkempt as he is prickly...