The film revolves around the life of Tarak, a foley artist of Bengali film. Tarak's job is to create ambient sounds for films, but, he gradually gets trapped in his own world, a world full of sound.
Jayabrata Roy, a school teacher in Kurseong, becomes helpless when he loses his eyesight due to a sudden retinal disorder. Relying completely on the sense of hearing, what happens when he starts getting threat calls to vacate his property?
Ambar Sen, a Bengali comes to Feluda and informs him that he has got threatening mail. Later Mr. Sen is kidnapped. Feluda investigates.
Antaheen follows the lives of three couples in tumultous relationships, who lead different lives but are connected by the infinite struggles and pain each of them goes through.
