Top 7 in Top 10 scariest horror movies about summoning games.
Bunshinsaba
Bunshinsaba is a 2004 South Korean horror film directed by Ahn Byeong-ki. In 2004, it was screened at the 8th Puchon International Fantastic Film Festival. The film had its US premiere at the 2005 New York Korean Film Festival, and screened later that year at the 5th annual Screamfest Horror Film Festival.
The film is about a group of students who rent an abandoned house for many years that is cursed by a ghost in the house, which locals say that the properties in the house are haunted. To prove that, young people have started playing Ouija to discover the truth of the story...