Columbo is invited as a guest speaker in a college Criminology course, and squares off against two cunning students.

Cooper Redman and Justin Rowe are bright, handsome, and wealthy university students, and the popular duo room together in a privileged fraternity house. Their major problem is Professor Rusk, who teaches their criminology course. He knows that Justin stole the final exam, and he promises to fail the two students if they don’t go to the Dean and ask to be expelled.

When the professor is later found murdered, Columbo steps in to investigate the mysterious incident.