The movie is about serial killings taken place over span of 4+ years, and the drama surrounding the "mysterious killer?". The question which inevitable haunts through out the movie, who would be the killer among the characters projected in the movie, and this really keeps you engaged until the end, only to know that ..... (watch the movie)
This is a real life story, and incidents shown are straight taken out of the investigation files. The movie does justify giving full life to these incidents, however one may feel that they are much introduced like chapter by chapter basis, and somewhere down the linee, the punch of the movie or the momentum is lost.
This movie could be watched in an sober afternoon, when you have nothing much to do. I guarantee it will eat away your afternoon, plus the evening whilst pondering on who could be the zodiac?, and could they be zodiac’s wandering around our streets ... yes.... the zodiac haunts you for sometime!!!
I recommend this movie for casual watching, and would guarantee it would satisfy your "need for thrill" appetite!!!