Sexy and Not Yet 16 (1968)

Rosy isn't 16 yet, but has already experienced much in life. The precocious 15 year old escapes the protectory and finds shelter at Helens, a singer. But her care is just temporary. An older man who pretends to be a bank director, causes her new sorrow. He forces her to have intercourse with several men and blackmails the suitors afterwards. Then Rosy meets a student, who she really likes. Can he help her and free her from this plight?