Watch Demoniac Flash Full Movie Free Online 123Movies. Two young men who always dream of joining the show biz meet a frivolous young actress in an old house during shooting of a movie. The three also befriended a couple living next door whose son died of traffic accident years ago. They also come to know a freakish cartoonist in the neighborhood. But the two young men have never expected that people around them are suffering from nightmares, and their own nightmares are about to begin.