Terjerumus di Lembah Hitam.

Bobby (Bagoes Galistan) is not finished with his work, because he is haunted by the death of his sister who was sold by her boyfriend to a brothel. When he was taking his friend Hendra (Chairil JM) to a brothel, he was asked for help by Rini (Ayu Yohana), who was about to escape from the brothel. He remembered his sister, and then determined to free Rini. At first, in a gentle way, dating Rini. They also fell in love with each other, while Hendra already had a girlfriend there. After being defeated repeatedly by the security of the brothel owned by Dewi Anjani (Sonny Dewantara), Bobby and Hendra managed to free their girlfriends who were forced to become residents of the brothel.