The Call

In 2019, 28-year-old Kim Seo-yeon loses her cellphone while traveling to visit her sick, estranged mother in a rural area. Arriving at her rundown childhood home, she finds a decades-old cordless phone, and through it receives calls from a distressed woman who says she's being tortured by her mother. After investigating the house, Seo-yeon figures out that the woman on the phone, Oh Young-sook, is living in the same house but in 1999. The two are able to communicate across time through the phone, and exchange information about their lives. Young-sook is orphaned and lives with her adoptive mother, who is a shaman, while Seo-yeon lost her father in a fire that she blames her mother, Eun-ae, for.