The story of Aabhaasam is about an overnight bus journey from Bangalore to Kerala where the travelers analyze the schizophrenic society and how it has evolved through different times. It brings to audiences' attention how the societal views are influenced by patriarchy. The movie is director's attempt to show the bus as the metaphor for the system and the travelers as the victims.

The movie chronicles the life of Khadeeja, a married muslim woman confined within the four walls of the household, forced to conceal her desires in the name of religious and societal norms. When fate brings her to an abandoned life, she chooses a different way of financially and sexually liberating herself- to be a sex worker; soon to realize that her soul is still dissatisfied. Finding a new way of hope, she decides to give back to the forces that pushed her to live an orphaned life of humiliation and misery.

Krishnan, who has been living away from his family and friends in Mumbai, gets a call from his friend Ganga in Kerala, out of the blue. He senses danger, and leaves for Kammattipadam, where both of them grew up.

Ayyappan, a police officer, is an upright man who always strives to do the right thing. However, things change when a retired army havildar, Koshy, settles in his village and the two egos clash.