Student Devin Jones, who decided to pick up a part-time job at the amusement park “Country of Joy,” suddenly finds himself, as if, in a kind of parallel world. Here people live by their own rules, speak in a special language, and really dislike it when someone asks too many questions. Especially when someone tries to dig for information about the murder of a young woman, Linda Gray, whose body was found in the park—in the “House of Horrors” pavilion…