**Overall : A murder mystery with a creative sci-fi time-bending spin that is fresh, compelling, and thrilling!** Another movie on the list of greatest movies you probably never heard of, Frequency innovates the typical murder thriller with characters working across time to catch a prolific serial killer that killed someone they loved. Frequency skillfully builds the tension throughout, starting as a warm story of family and turning into a thrilling hunt using evidence and crime reports in the future to stop a killer before he kills a loved one in the past. Frequency's themes of family, loyalty, maturity, and hope elevate this film from a clever crime thriller to an extraordinary story with rich character development, high stakes, and an innovative plot.