- Alone is a "Cinema of Thailand" Thai horror film directed by Banjong Pisanthanakun and Parkpoom Wongpoom, a duo whose debut film, Shutter, was a box-office smash in Thailand and other Asian countries. Alone stars Thai-German pop singer Marsha Wattanapanich in her first film role in 15 years. Since its general release in Thailand cinemas, Alone has made the rounds at film festivals, playing at the 2007 Bangkok International Fil Festival. At the Fantastic Fest in Austin, Texas, the film won awards at the 2007 Screamfest Horror Film Festival in Los Angeles, winning Best Picture, Best Director, Best Cinematography and Best Editing. The film also won the top Audience Award for Best Feature Film at the 2007 Toronto After Dark festival. The closing credits feature a song by Marsha Wattanapanich. "Suan Neung Khong Chan (A Part of Me)".
Looking roughly at Pim's life, she is just another ordinary woman. She moved from Thailand and started a new life in Korea with her caring and loving husband. But one night a phone call from Thailand changes her life forever. Pim learns that her mother is gravely ill with an unknown disease, and she and her husband Lee rush back to Thailand. The moment she arrives in Thailand, the flashbacks begin painful memories, long buried, along with a strange familiar feeling. These things only grow stronger, as she reaches the house where she grew up. She is inundated with a nostalgia that is sweet, but with an undercurrent of terror, a realization that someone is "there," right beside her, always. And that someone had always been there. The secret of Pim and her family has slowly been revealed: she was once a Siamese twin! Ten years ago, Pim and her conjoined twin sister underwent as operation to separate them. But her sister died during the attempt. And now, Pim suddenly feels her presence once more, relentlessly. Will she regain the normal life she once had - her own and hers alone?