When 28-year-old Seo-yeon gets a call from a woman named Young-sook asking for her friend. Seo-yeon hangs up thinking the woman has the wrong number, but later learns that the call was coming from the same house 20 years ago.
Elenco:
Park Shin-hye
,
Jeon Jong-seo
,
Kim Sung-ryung
,
Lee El
,
Park Ho-san
,
Oh Jung-se
,
Lee Dong-hwi
.
