2 titles, most popular first
In an alternate 2009, Korea is still ruled by Imperial Japan. Masayuki Sakamoto, an agent of the Japanese Bureau of Investigation, and his partner Shojiro Saigo stop a hostage crisis at a museum, and Sakamoto grows curious about why the rebels were after a mysterious artifact and the foundation linked to it.
In 2019, Kim Seo-yeon visits her ill, estranged mother at her run-down childhood home and finds an old cordless phone. Through it she starts getting calls from Oh Young-sook, a frightened young woman living in the same house in 1999. The two begin talking across time, bonding over their troubled relationships with their mothers.
