I believe this project was a part of the Star-bestseller series on Star Plus, in the late 90s. Back in the day I had been able to catch glimpses of the episode, but it was only later that I watched the entire episode.
In my opinion, this episode can be considered to be a part of the golden era of Indian television when some of the best talent was available, along with some laxity on the end of what content could flow on television. This allowed for creators to come up with many creative endeavors and push for content which might not flow with Bollywood or mainstream actors/directors of the time. (Basically what webseries do now, though a lot has changed in terms of audience opinions and what kind of content they like)
The story deals with a serial killer on a death row, being interviewed by a journalist. When she tries to dig deep, he professes innocence stating that all these so-called murders were part of his experiment to free man of disease. (Specifically uses the term 'Virus' perhaps a reference to Aids, which was all the taboo and was rarely referenced even in those days)
The story then takes a form of a number of flashbacks narrating what went wrong. The story is simplistic in its tone, yet draws in the viewer till the very end, when the surprise hits them. The acting is great, as is expected from veterans like Kay Kay and Nivedita Bhattacharya. Kay Kay portrays the role of an man obsessed with his work, while Nivedita acts as the ears and eyes of the audience.
The direction is brilliant, the smaller sequences setting up for bigger things. An example of the same can be the opening sequence of this feature, wherein Kay Kay is with a bunch of articles in his prison wall and a portrait of a woman sketched on to his wall. This is a brilliant exposition for the events to follow, developing the nature of his character and also creating interest in the minds of audience as to the identity of the mystery woman.
To add to the same there is the haunting setting and the uncanny music, which adds to the overall experience. Personally, it was a pleasure to watch Kay Kay and Kashyap together again, also Kay Kay portraying the role of an incarcerated serial killer was interesting. I still remember there was a show in the 90s named 'Darrrr' wherein Kay Kay was a cop hunting a serial killer and Irrfan Khan playing the latter, never got to watch that brilliant feature though.
Don't miss this one if you are a fan of Kashyap, Kay Kay or have watched TV in the 90s.