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6. Zodiac – A True Crime riddle That Stays Unsolved

Unlike utmost crime suspensers, Zodiac does n’t give you a satisfying conclusion — because real life did n’t. This 2007 film, directed by David Fincher, tells the nipping story of the Zodiac killer, a case that remains unsolved to this day. What makes it stand out is the position of exploration that went into it. The filmmakers spent 18 months gathering real- life details about the case, making sure everything — from police procedures to the killer’s cryptic dispatches was accurate. It’s a slow burn, but for true crime suckers, it’s a goldmine.