Impressionable young college students may have learned a little too much from guest lecturer Matlock when he tells them about committing the perfect murder. A hated classmate of theirs disappears, and evidence of foul play is found in his garage.
As a juror in the trial of a man accused of killing his wife, Ben angers the other jurors by being the only holdout. He believes the accused man is innocent, and he even holds a demonstration to prove his point.
An eccentric millionaire seemingly commits suicide, but when the details don't add up, and too many women come forward as the heiress, executor Bens' job becomes a mess of finding the heir/heiress, and determining the true cause of death.
Ben, scheduled to appear as a witness in a robbery case, is joined by Conrad and Cliff in reviewing three of his past cases to determine which exposed murderess is engaged in a campaign to make him seem senile.
Ben takes Leanne to meet the wife of his first client back in the early 60s. Mr. Shaw was the cook at the local diner where he was accused of killing the local sheriff after a disagreement in the diner.
Two weeks before con man Adam Spangler's appointment with the electric chair, Det. Campbell Buchard convinces Ben and Leanne to shake the eyewitness testimony that put Spangler on death row and find the real killer.