Petra professionally works as a thief abroad to finance the studies of her younger sister Franziska in Germany. When she returns, she realizes that her sister has a secret, too.

卡特琳是一位单亲妈妈，她独自一人抚养双胞胎路伊莎和卢卡斯，这意味着她没有多少个人生活空间。但是，好像时来运转，老板托尔斯腾想娶她，然后一起搬去荷兰住。这种生活马上就要结束了……一度，卡特琳想她应该给孩子说清楚他们是试管婴…