Billy is a make-up artist working on a low-budget thriller being made by a group of young Americans in Moscow. She is also mute. One night when she returns to the studio to retrieve some work, she witnesses her fellow production crew shooting a snuff film. Later, they claim the murder was fake, but Billy is not convinced. She doggedly pursues the case while trying to protect her life, which is slowly being drawn deeper into the web of the Russian underworld.