The Call

In 2019, Seo-yeon returns to her childhood home in the countryside after visiting her estranged mother, who has a brain tumor, in the hospital. While walking, Sung-ho, who owns a strawberry plantation, gives a ride to her in his truck. Seo-yeon realizes that she lost her cellphone in the train and connects a cordless telephone she finds in the house. Soon she receives several phone calls from a distressed woman and they start talking to each other. She learns that the other woman is Young-sook and they both are twenty-eight years old and have problems with their mothers. Further, Young-sook lives in the same house in 1999 and her stepmother is a shaman, who is cruel to her, keeping her locked up in the house and punishing her for mistakes. When Seo-yeon tells Young-sook that she blames her mother for the fire that killed her beloved father in 1999, Young-sook saves her father and the life of Seo-yeon changes for happiness with her family together. When Seo-yeon learns that the mother of Young-sook killed her during an exorcism, she informs Young-sook and she kills her mother instead. Soon Sung-ho and her father disappear and Seo-yeon learns that Young-sook is a psychopath and sociopath and has become a serial-killer. But what can she do to stop Young-sook living twenty years in the future.