Professor of Oxford during his annual sojourn to home town receives a copy of the bengali classic from an anonymous source and wonders whodunit, howdunit and most importantly whydonit?

Subrata Sharma, an ordinary crime reporter, loses his job and takes up temporary work as a secretary in a rundown detective agency called Danny Detective INC. Appointed to find a missing girl Tamali, Subrata stumbles into dangerous situations that lead to a huge conspiracy.