Note: Chanchal Chowdhury, a National Film Award-winning actor in Bangladesh, delivered a remarkably restrained performance using minimal dialogue, relying entirely on body language and eye contact.
The film follows Rahul (played by Paoli Dam’s partner in the film), a Bengali architect who returns to Kolkata after years of working in Dubai. He finds a city in the throes of a massive construction boom, symbolized by the "mushrooms" of concrete rising across the landscape. The narrative contrasts his professional life in the sterile, developing urban sprawl with his brother’s primitive existence in the forest, where he lives like a wild animal. The central themes include: Urban vs. Rural: Chatrak 2011 Bengali Movie Wiki
The central metaphor of the film is the mushroom—an organism that thrives in darkness, decay, and dampness. The mushrooms in Chatrak are not natural; they are mutant, aggressive, and almost sentient. They grow out of the cracks of a stalled construction project, symbolizing how repressed nature erupts when human development falters. The narrative contrasts his professional life in the