Actually, the title itself is one of the literal translation of the arabic word; "Munafik" that means impostor. So, the storyline is quite similar with both of his previous brother's movie, "Munafik 1" & "Munafik 2", even "Khurafat" have the kind of similar story too. Its watchable but we have watch it before. Please find new idea. Let me suggest you one, how about a movie from satanist's perspective? They dont just born satanist, please include some sad backstory.
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