Young Inspector Bahram falls in love with Maimun, a singer and intends to marry her. However, his younger sister Ramlah who was placed under the custody of Razak, their uncle mistreat her physically and mentally. The story gets more complicated as Razak is also Maimun's boss.
Ramlah's father left them to grow up in Singapore while he went to live in Java to become a millionaire. He receives a letter from Bahram inviting him to his marriage just before he dies of old age.