Madchen Madchen (1967)

aka’s: Mädchen Mädchen/
Der Kammerjäger

Just released from a youth detention center, Andrea (Helga Anders) is wooed by her boss' son and finds herself in a love triangle that defies the moral and social norms of the time in more ways than one. Also stars Jürgen Jung and Hellmut Lange. (In German language, with English subtitles).