Bipasha Basu says playing a jealous actress past her prime in Raaz 3D was emotionally draining as she could not identify with the evil nature of her character.
Bipasha says she pushed herself maximum to portray the character of Shinaaya, an actress who resorts to black magic to get her career and lover back in the horror film, which hits the theatres on September 7.
"I did not know how to bring in so much darkness because I am a happy person. I did not have any reference point. But I had to deliver and I think it was the nervous energy that brought me into that zone. It is the maximum I have pushed as an individual to perform. This role has depressed me, drained me and has broken me down," Bipasha told PTI.
The Bong beauty says she is fascinated by the dark side of human nature and that was one of the reasons that prompted her to return to the franchise a decade later after 2002 Raaz, also her career's first hit.
"All over the world, actors are fascinated by dark roles because the good is very predictable. We all are very normal beings who fear things. I have played such roles and it is fine but a dark character is always more exciting," says Bipasha.
The actress, who started her movie career with a grey role in Ajnabee, believes that Raaz 3 would be one of the darkest roles of her career.
The 33-year-old, whose break-up from John Abraham hogged the limelight until recently, says playing an actress onscreen made her realise how vulnerable actors are in real life.
"This role made me think that how we don't accept the basic fragile emotions that we actors have. We are always supposed to be strong, perfect creatures to others. Everybody envies our lives but there is a lot more fragile about actors.