Wealthy philanthropist Malcolm Engle reveals his plan to murder someone close to Ben Matlock at a certain time and place and challenges Matlock to try and prove he did it. When Lt. Bob Brooks becomes the victim, Matlock struggles to break Engle's alibi and link him to the murder.
Cliff's friend Fred is accused of killing the woman he met through a video dating service, so Jerri goes undercover as a client of the service in order to catch the real killer. Meanwhile, Matlock tries his own luck at video dating.
After a judge is killed in a deliberate explosion, Matlock suspects he was the actual target of the killer. He looks back on past cases to find the culprit.