This story is about two people. One is Kanhaiya (Vinod Khanna) who is master in making duplicate handwriting and signature and other one is Kishan who is master in opening locks without key. Kanhaiya is leaving in Delhi. Court of Delhi instructs Kanhaiya to stay away from Delhi for 5 years and Calcutta court does the same to Kishan for 5 years from Calcutta. Police leave both at state limits. They meet at bus station and also meet Radha (Zeenat Aman) Both make mad to people and get money. They read from station, Bombay is 405 mile. In another place Ranveer SIngh (Iftekhar) live happy life with his family. He buys a doll which can dance and record voice and play. But in his happy life, enters his brother Veer singh, who is a bad man he kill Ranveer's family also try to kill him and give letter that Ranveer kill his family and commits suicide. But he is alive and mad, but Veer Singh kills another daughter in place of Ranveer's daughter. She is Mohan Chacha's brother's daughter. Mohan take Ranveer's daughter and runs from there because Veer Singh's man follows him to kill Munni. Ranveer's daughter in train save Kanhaiya & Krishna to Mohan and Munni at the time of death mohan says both of them that to save Munni because it is crodes matter firstly they think that he is laying but they take her and going to search her home. Radha run from police in are person (Pran) and take money from man's Kishan and Kanhaiya go to hair cutter to cut munis hair and take cutters house and shop and open the lost found agency they give advertise in newspaper about Munni they deal with veer singh 50 lacks rs radha going to Kishan and Kanhaiya tell that like lost memory and drama with them that she love them and she go to take Munni but they found Munni Kishan and Kanhaiya hide in car and go to Veer Singh's place. He catches both try to kill but both of them catch police and leave them. Police understood that Ranveer did not kill his family. Kanahaiya combines with police to catch real murderer. But at that instance police understood that Mr. Ranveer's daughter is still alive. Munni sees his father's car and going to Veer Singh's house. Can Veer Singh kill Munni? Will Ranveer SIngh remember everything ? Will Veer singh be successful to take all property? Can police catch Veer Singh ? Who among Kishan & Kanhiaya will get Radha? Can a doll talk in front of all people?