During a stopover in Buenos Aires on her way to Chile, 31-year-old Maria recognizes a nursery rhyme. Maria doesn’t speak a work of Spanish, but without understanding what she is singing, she remembers the Spanish lyrics. Disturbed and thrown off course, she decides to interrupt her journey and wander through the unfamiliar city. On the phone to Germany, she tells her father, Anton, about her experience and the peculiar fascination the unfamiliar city has had for her. Two days later, Anton suddenly turns up at Maria’s hotel with something to confess: Maria spent the first three years of her life in Buenos Aires during the military dictatorship at the end of the 1970s. The people she had always thought were her parents had adopted her and brought her to Germany. Father and daughter begin a journey in search of Maria’s biological parents. Anton does everything he can not to lose his daughter.

1998年，三名图灵根州的右翼极端分子被发现潜逃，特别调查员保尔•温特与其上司兼好友瓦尔特•阿勒受命追踪嫌犯。本以为这只是一次例行任务，却没料想到阻力重重，而这阻力竟来自于内部。时隔多年，追踪行动因无进展而被搁浅，保尔的同僚们也都渐渐离去。2011年，两名银行抢劫犯在被 巡警发现后开枪自杀，而他们正是潜逃多年的右翼分子，保尔再次受命，与已故好友瓦尔特之女夏洛特•阿勒一起搜寻最后一名嫌犯，事情的真相终于渐渐浮出水面……（豆瓣电影字幕翻译2.0小组）