Movies like ghost

Dead Friend (Korean: 령; RR: Ryeong; lit. "The Ghost") is a 2004 South Korean horror film. It is one of a number of South Korean horror films set in high school; the trend began with 1998's Whispering Corridors.

Three high school girls are bored and decide to conduct a séance with a bunshinsaba - a traditional Korean ouija board. As the spirit is called by Eun-jung (Lee Yoon-ji), her sister, Eun-seo (Jeon Hye-bin), scolds the girls. Eun-jung jokingly wishes that the ghost had taken Eun-seo away and that if they do not send the ghost away, it will kill them. Eun-seo is then killed by a ghostly water presence.

The amnesiac Min Ji-won (Kim Ha-neul), who is an expert swimmer, begins to have nightmares of a ghost from her forgotten past, which seems to be connected to water. She is confronted by an estranged friend, Yu-jung, who tells her that because of Ji-won, "Su-in" is coming for them. Yu-jung is soon found dead.