Prince is an amateur race car driver and the son of industrialist Bharathan Menon and Sreedevi Menon. He lives a happy-go-lucky life style spending time racing cars, entertaining his nephews in his farm house and hanging out with his close friend Vettikkal Sadashivan. He is also involved in fights with the local goons in Bangalore, which lands him in trouble with local police. His brothers Jayan Menon IAS and Dr. Balan Menon, though openly criticize him, come to his aid to release him from the police station. His father disapproves his lifestyle and is trying to find a suitable alliance for him. One day, Sadasivan introduces Prince to his relative Pavithran, who seeks help in kidnapping his girlfriend for them to elope. In a comedy of errors, Prince and Sadasivan sedate and kidnap another girl with the same name, Anju. On realizing the mistake the next morning, Prince drops the girl back at her hostel. The ladies' hostel matron does not allow Anju to continue her stay there after her disappearance. Anju goes back to Prince's farm house for abode, it becomes difficult for Prince and Sadasivan to handle. Prince's entire family comes to know about Anju living in the farm house and they desert Prince. One morning, Sadasivan and Prince find an obituary in the newspaper with the photo of Anju. They trace the news reporter responsible for the obituary. The news reporter Das and his wife Maya reveal that Anju is the daughter of Colonel Devan Nambiar and that the dead girl was her twin sister, Manju. Two years ago in Ooty, Manju was raped by a few guys taking her father as a hostage. After that, she killed herself in front of her father. Later, Nambiar killed her daughter's rapists and he was sentenced to death by the court. Anju plans to commit suicide at the same time her father is executed, but Prince manages to save Anju from committing suicide. Prince gets a mercy petition for Nambiar and his death sentence gets reduced to life imprisonment. Anju and Prince confess their love at the end.
and Mohanlal were supposed to make a film titled Australia. Based on a script by P. Balachandran, it was the story of a car racer who meets an accident and suffers serious burns on one side of his face. Filming began at Sriperumbudur with a Formula One car race sequence featuring Mohanlal that was shot with six cameras. After a week's shoot the project was dropped, reportedly due to budget constraints. However, in a TV show in 2020, Anchal recalled that the film was cancelled due to superstitious reasons when some people persuaded Mohanlal to opt out from the film supposing that the role of a disfigured person may bring jinx, Mohanlal eventually opted out dropping the film altogether. His character in Australia was inspired from Formula Onerace driverNiki Lauda. The car race scenes shot for Australia was later used in the opening titles of Butterflies. Principal photography took place in Bangalore, where there was a 60-day long shoot. Aishwarya had worked in Priyadarshan's Gardish, the same crew was working in Butterflies and Aishwarya was also invited for the film. In fact, Aishwarya was keen on working with Mohanlal and was a fan of his work.
Soundtrack
The film has six songs composed by Raveendran and written by K. Jayakumar. The songs were distributed by the label, Lahari. The film score was composed by S. P. Venkatesh. ;Track list
"Aaha Manoranjini": M. G. Sreekumar
"Minnaminni Koodum Thedi": Unni Menon, K. S. Chithra
