Because she violated the doctor’s order to not get pregnant again, Yuwono’s wife finally dies while she is pregnant with her third child. Yuwono then marries an office staff, Ningsih. Harun, another co-worker who also loves Ningsih, tries to destroy Yuwono by tampering with the office’s financial report so that Yuwono is arrested and is investigated. Harun then influences Ningsih, regarding her standing as a stepmother, so that Yuwono’s house is taken over and the stepchildren, Netty and Susy, are treated harshly. The two children run away from home, looking for their father, and are separated for a time. When Yuwono is proven innocent and is released, he does not find his children at home and goes around Jakarta to look for them. He finally finds them again.