The "Bujang Lapok" trio—Ramli, Sudin, and Ajis—travel to Malay Film Productions in Singapore for an open-call audition. They accidentally disrupt the filming of Yatim Tua dan Setan Angkat Dulang, but the manager intervenes and introduces them to the on-site director, Ahmad Nisfu. The director reluctantly agrees to audition them but grows exasperated as they improvise their lines. Nevertheless, their comedic talent wins over the studio boss, and they are offered roles in an upcoming film.
The trio share a house with other tenants, each renting a room. Their first evening rehearsing scripts is fraught with disruptions: a couple dancing to loud music, a neighbor tinkering with a motorcycle, and a drunken trumpeter practicing loudly. The trio deal with each disturbance in their own comedic ways before resuming their rehearsal.
The next day, filming begins, but despite learning their lines, their antics frustrate the director to the point of collapse. While visiting him in the hospital, their well-meaning presence causes him to faint again. Back at home, Ramli grows closer to their neighbor Salmah, whom he admires. She tries to tell Ramli that Shariff Dol has proposed to her. Shariff Dol later confronts Ramli, taunting him until Ramli challenges him to a fight. After Ramli is found bruised and unconscious by Sudin and Ajis, the three friends share dinner together in solidarity.
The next day, Shariff Dol and his mother visit Salmah’s home to discuss wedding plans. Though Salmah disapproves, her mother reluctantly accepts Shariff Dol’s financial offer. That evening, Ramli expresses his desire to marry Salmah but laments his lack of money. Sudin offers him a "magic stone" he bought from a roadside vendor, claiming it will fulfill Ramli’s wishes. Ramli appreciates the gesture but remains unsure.
Later, the trio face more neighborhood antics, including a baby diaper dispute and a policeman’s intervention. The following morning, Salmah reveals to her mother that she has no intention of marrying Shariff Dol, citing his harassment. Humiliated, Shariff Dol vows revenge.
That evening, Salmah informs Ramli she has rejected Shariff Dol’s proposal and suggests using her savings for their wedding. Their joy is short-lived when they return home to find their house in flames. Salmah suspects Shariff Dol of arson. The trio rally the neighbors to track him down. Ramli finds Shariff Dol’s wallet at the scene, confirming his guilt. In the ensuing confrontation, Ramli defeats Shariff Dol in a fight. When the neighbors arrive demanding justice, Ramli persuades them to hand Shariff Dol over to the police.
The story concludes with the trio walking off into the moonlight, accompanied by their romantic partners, as harmony is restored.
