After receiving acclaim for his role of a serial killer in Kahaani, Saswata Chatterjee will be seen in a similar role in 89, only this time his character is more complex and sinister.
"I did not have to think much doing Bob Biswas in Kahaani. Here in 89, he is far more dark and you can't read his mind," Mr Chatterjee told PTI.
To get into the skin of serial killer Sabyasachi, Mr Chatterjee prepared himself psychologically over a period of time.
"The very name of the thriller '89' suggests that there is suspense," the actor said hinting that there was a link between the title of the film and his character. He, however, did not reveal more.
The film's director Manoj Michigan, revealed that Mr Chatterjee's serial killer role had taken shape after he saw a documentary on serial killing and researched on real-life serial killers across the world.
Besides Saswata Chatterjee, '89' also stars Raima Sen and Barun Chanda.
The film, which was screened at the 19th International Film Festival of Kerala (IFFK) 2014, will hit theatres later this month.