Parinamam is a drama film that explores the repercussions of environmental destruction on family relationships. Set in 2003, the movie delves into the harsh reality of how human activities impact the environment and subsequently affect the dynamics within a family. It highlights the interconnectedness between the environment and familial harmony, urging viewers to reflect on the consequences of their actions.

After one of their elite officers Chandran (Raghavan) is brutally murdered, the CID force sends in their most elite officer Nazir (Prem Nazir) to investigate. He is in the crosshairs of a dangerous crime syndicate; but with the help of his trusted associate officer (Adoor Bhasi) the CID manages to tackle each obstacle thrown at them.

When Vikraman returns home after completing his studies, he finds out that his brother has illegally acquired all the property leaving his widowed sister in poverty and decides to set things right.

With the menace of a counterfeiting racket operating in Kerala on the rise, CID Inspector Nazir is tasked to bring the perpetrators to justice.

Thampy, a smuggler and a womaniser, is unaware of the twins that he has fathered with Sarojama. However, things take a turn when the twins soon plot his downfall.