Karsono, a foreign spy, sends Dachlan to Hong Kong for a secret mission, so that he can rape Dachlan's wife, who later dies. Dachlan himself is killed in Hong Kong. Then there is Muchtar, who escapes from Hong Kong to return to Indonesia, hoping to have his sick wife cured. But he finds out that his wife has been murdered so he works with the police to solve this. One of Karsono's men who defects, reveals his secrets but before he can be captured, Karsono is murdered by his men.