Bollywood`s national-award winning director Srijit Mukherjee`s upcoming film `Nirbaak` (Speechless), starring Sushmita Sen, will hit theaters on May 1. Srijit explains this is Sushmita`s debut in Bengali and   a hyperlink narrative comprising four love stories connected by a single woman, played by Sushmita. Since every love story comprises one entity which is silent, it is titled `Nirbaak`. The film celebrates the kind of love which transcends human language, exploring the most celebrated human themes of love, lust, jealousy, affection and separation. `Nirbaak` also stars Jisshu Sengupta, Anjan Dutt and Ritwik Chakraborty.