[1][2] The first two films Goopy Gyne Bagha Byne (1969) and its sequel Hirak Rajar Deshe (1980) were directed by Satyajit Ray, and the third, Gupi Bagha Phire Elo (1992), was directed by his son Sandip Ray.
The trilogy starred Tapen Chatterjee and Rabi Ghosh as Goopy and Bagha, respectively.
The story revolves around Gopinath Gayin (alias Gupi, played by Tapen Chatterjee), the son of a poor grocer Kanu Kyne from a village called Amloki.
They start singing and drumming, initially to scare off a roaming tiger, and in the process, they attract a group of ghosts who are fascinated by their music.
They arrive singing and drumming when the soldiers are about to launch their attack, capturing the king of Halla, who is returned to Shundi.
Those who protest are taken care of in the 'Jantarmantar', a chamber for brainwashing devised by the scientist (Santosh Dutta), who the king mocks calling as "Gobeshok Gobochondro Gyanotirtho Gyanorotno Gyanambudhi Gyanochuramoni".
On reaching the laboratory, the king and his ministers are stunned magically by Goopy's singing and then pushed into the Brainwashing machine.
Goopy Gyne and Bagha Byne have ruled the kingdom of Shundi and are bored of royal luxuries.
Finally, they reach Anandagarh and win the king's heart with their musical abilities and powers.
In the court room they meet Brahmananda Acharya, who invites Goopy and Bagha to come to Anandagarh fort.
When they go to his place he offers them a job to steal three valuable stones, making use of their miraculous powers gifted by Bhuter Raja (King of Ghosts).
Brahmananda Acharya had gained immense powers, as shown when he was not rendered motionless when they sang in front of the court.
To prevent his death, Brahmananda Acharya had all the boys in Anandagarh, who were 12 years old and were named Bikram, kidnapped by his soldiers.
Ray said to The Times of India about the plot of fourth film: "Making a Goopy Bagha movie without Tapen and Rabi is unthinkable.