Akam tells the story of Srinivasan, a young architect, who is happy when he gets a good job and a beautiful girlfriend, Tara. But then an accident leaves him totally scarred. Tara leaves him and Srinivas, now shattered and sans his confidence, withdraws into a shell. Then he meets the beautiful Ragini who is willing to accept him in spite of his sinister appearance.
They get married, but after a while, doubts creeps up in the mind of Srinivasan about the true identity of this woman, where he is confused whether this woman is human. From there the story develops