Matlock (1986)

S1E11 The Professor

Professor Erskine Tate regains consciousness in his car, confused and hungover, with no memory of how he ended up there. Soon, he learns he's being blamed for running over a mailman during his reckless night out. Seeking assistance, he turns to his former student, Ben Matlock, who begins to look into the actions of two students and a teaching assistant to uncover the truth.