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A lunatic is terrorizing a group of friends who met in college in this horror thriller from South Korea. After visiting a college friend now living in the United States, Seon-ae (Choe Jeong-yun) becomes convinced upon returning to Korea that someone is following her; what's more, the stalker in question looks just like someone she once knew who died not long ago. While Seon-ae is trying to shake the mysterious figure following her, several other members of her circle of friends from her school days are falling prey to a psychotic murderer, and she wonders if her stalker may have murder on his mind. Gawi's supporting cast includes Jeong Jun, Kim Kyu-ri, and Jo Hye-yeong; it was the first feature directed by former cinematographer Ahn Byeong-ki.