Socialphobia (Korean: 소셜포비아; RR: Sosyeolpobia) is a 2015 South Korean mystery thriller film starring Byun Yo-han, Lee Joo-seung, and Ryu Jun-yeol.

[2] It was co-written and directed by Hong Seok-jae in his directorial debut, based on a real-life story that explores the social issues within internet culture among the Korean youth of the 21st century.

[3][4][5][6][7][8] A group of youngsters investigate a girl who died after being targeted in a witch-hunt on social networking sites, in an attempt to determine whether her death was suicide or murder.

A member of the group at first becomes suspect but later the death was proven as a suicide.

The film explores internet addiction, cyber bullying, social phobia and lack of morale - self-esteem among youngsters.