Michelle Watson, a Buffalo, New York based real estate agent, is found murdered inside a house at which she was showing. A week later, the Buffalo Police Department receive an audio-less and edited video recording from the murderer's viewpoint of the lead-up to the killing, including shots within the murderer's home, as well as the actual murder itself. From the video, it looks as if it was taken by a hidden camera located somewhere on the upper half of the murderer's body. From the actions on the video, the BAU can also tell that the murderer suffers from obsessive-compulsive disorder. Reviewing past cases in the Buffalo area within the past ten years and another video visible in the background of the video sent makes them suspect that this murder was done by a serial killer. Two other key pieces of information on the video are the number "29", circled by the murderer on Michelle's day planner, and the murderer scrawling the words "HELP ME". The BAU have a race for time as they believe "29" refers to the date and the 29th of the month is the next day - the date they believe the next murder will occur.