The Ganda family has one child named Ari who has graduated from the university and is engaged to a young woman named  Mia. Karna, who has to go to Singapore for some time, leaves his daughter Ira with the Ganda family. Initially Ari see Ira as a little sister, but Mia sees her as a threat to her relationship with Ari. Mia then persuades her older brother Leo to rape Ira. The attempted rape is foiled by Ari, who begins to fall in love with Ira. Mr. Ganda, who realizes Afri’s attraction to Ira, decides to take action because he has a business relationship with Mia’s father, Brata. Mr. Ganda expels Ira from their family home and forbids Ari to continue the relationship. Ari leaves home to follow Ira, and rejects a job offer from Brata’s company. He begins working as a coolie in a new plaster factory. In the end, Karna accepts him as his son-in-law. • Initially titled "Nyanyian Cinta".