The film is based on the real life murder mystery of Sheena Bora. Bollywood actress Mahima Chaudhry makes her debut in Bengali film as Ishani Banerjee, a character based on Sheena's mother and alleged murderer Indrani Mukherjea. Riya Sen will play the part of Rina Bardhan, inspired by Sheena Bora. Media baron Peter Mukherjea, Sheena's stepfather, will be portrayed by Sudeep Mukherjee.

Kali narrates the journey of a young girl dealing with prejudices and stigmas that are deeply rooted in the society.

Bangshi Das is an impersonator of Charlie Chaplin. He earns peanuts by being the 'joker' at birthday parties. However, he prefers to call himself an actor rather than a worker. His life circles around his son who is the greatest critic of his performances. Poverty never seems bitter as the father-son duo knows how to make fun of it.