Prachaya, is a young author who loves to write about horror stories, but his wife PunNee never like his horror stories. Simply because she find them silly and not scary enough. However, Prachaya never gives up; his aim is to write the most frightening ghost stories in Thailand. To feel the real horror, the couples decided to travel around for new inspiration and they end up in a cottage surrounded by beautiful nature! While they are enjoying the beauty of nature, Prachaya always feels that there's someone peeking at them from a small house near their cottage. And here comes his idea for his next horror story. He named it "GIRL NEXT DOOR". "GIRL NEXT DOOR" will be a story that he wish he had never written it, what is coming after him is more than he can imagine"