Kishanchand (Sreeram Lagoo) forges passports, and is under the surviellance of the police. Upon his wife Shanti (Nirupa Roy) and son Pyarelal's insistence, he decides to give up on all criminal activity and becomes honest. Then Shyamlal (Jeevan) approaches him to make a fake passport, which he does for a suitcase full of gold bars. Shyamlal escapes, but the inspector arrests Kishanchand and in the scuffle the inspector gets killed. Kishanchand then moves to London where he slowly gains fame as the underworld Don, 'King'. He thinks that his son and wife have been killed in a fire accident. Years later, when Kishanchand comes to know that his wife and son are still alive, he invites them both to London. The guy who claims to be Pyarelal (Dharmendra) is Ronnie, an underworld smuggler. Kishanchand finds out that this is not his son, he is son of the police inspector whom he had accidentally killed years ago. Sonia (Zeenat Aman) is also after Kishanchand. She is the daughter of the man who was convicted of the inspector's murder and had spent 14 years behind bars for the same. It remains to be seen that what happened to the real Pyarelal.