Actress Zareen Khan, who is set to explore the horror genre for the first time with filmmaker Vikram Bhatts "1921", has been preparing for her role by watching some horror series and films every night. "I have never done a horror genre so, it's very challenging for me. But I am really looking forward to this one," Zareen said in a statement. The actress' role in the film has not been disclosed yet. Zareen, who was last seen on the big screen in director Vishay Pandya's "Hate Story 3", would also be attending a few workshops before she starts shooting. The film will revolve around students of music and will be set in a university town. It will go on the floors in May and will be extensively shot in London.