On August 25, 2015, 51-year-old care worker Torrance Cheeves is found stabbed to death in his San Antonio, Texas home. With no suspects and a trail of puzzling evidence, investigators turn to surveillance cameras in the surrounding area for answers.

On March 27, 2017, Andrew Nesbitt is found dead on his 46th birthday in his Madison, Wisconsin apartment. With no witnesses, investigators turn to surveillance cameras in local bars, cabs, and street corners to track down his killer.