Young, pretty Milli is passionate about winter sports, and of all things, she wins a vacation trip to the Baltic Sea at her company - in summer, of course. After her first dip in the sea and meeting a nice young man, her initial displeasure fades. But not for long, because Robby turns out to be a filou, shuns regular work and is also a womanizer. After some confusion, Milli's vacation ends well after all. She goes home with Robby, who wants to take a job as a car mechanic in her home town of Suhl.