Matlock goes back to school for a little more education, and while there, one of his students is accused of murdering the professor she was having an affair with. Matlock soon learns that love wasn't the motive; cheating on tests was.

Matlock has to defend an arrogant young tennis professional (Dave Travis) against a charge of murdering his rival on and off the court (Victor Tomassio).

When personal trainer Harry Slade is murdered, Matlock agrees to defend his roofer, George Wilton, on the condition that George finish Matlock's roof like he promised. The case is complicated when it turns out that not only was Harry sleeping with beautiful blonde DeeDee, but also Bridget Laird, and Harry's wife and step-daughter!

Matlock is all set to be honored as the man of the year, but when his car breaks down and he's forced to ask his housekeeper for a ride, a simple twenty minute trip turns into a flat tire, a hostage situation, and an afternoon in jail.

Matlock witnesses a robbery at a convenience store, but when things start happening that make him look like he's losing it, including messing with his papers, sending him to the wrong parties, and submitting phony pictures of his hind end to the papers, Matlock begins to realise that someone is trying to set him up. He, Cliff and Conrad begin to go through some of his old cases, trying to figure out which recently released killer is out to get him, but everyone they think of seems to have an alibi.