Haji Salleh who was seperated by his family in Singapore fell sick when he was in Mecca. He had a wife, Ainon, a daughter Petum and a son Bahar who is an Inspector Police. Before he passed away he made a will who was entrusted to Sidek to be given to his family. As he arrived back in Singapore the beg which had the letter and money in it was stolen by Kamal, who stole the money and through it away. Kamal not later after that was arrested by the police. By coincidence, Kamal's daughter was Inspector Bahar's boyfriend. Sidek came to the Police Station as he heard about the arrest that has been made to the thief who stole the money. But he was taken back when he saw the face of the criminal who resembled so much of his friend who passed away, Haji Salleh.
Set sometime after the events of the previous film, Haji Bakhil's wife has died. Haji Bakhil is alone and depressed, but eventually meets a beautiful young woman named Murni, who is a teacher at a school for orphans. Haji Bakhil spends some time pursuing her, and his attention is apparently not unwelcome.
Do, Re and Mi in this sequeal tells the tale of a group of gangsters who are planning to rob a bank. So they use this oppurtunity to con them out of it and capture them at the same time. Many comedic memorable moments are carried out through the movie.