After a serious accident, Anna begins having strange dreams: highly detailed ones that resemble another woman’s memories. When the dreams begin to overlap too clearly with real life, Anna starts investigating and learns about the existence of her twin sister, Yulia, who was believed to have died in a helicopter crash. Convinced that Yulia may be alive, she begins searching together with rescuer Sergei. However, the people hiding the truth about the crash do everything they can to stop them.
