Ep 11. A Trace of Murder

Cathleen Calvert (Shera Danese) and her lover, crime scene investigator Patrick Kinsley (David Rasche), plot to get rid of Calvert's husband, Clifford (Barry Corbin), a powerful businessman, by killing an investment broker with whom he is currently feuding, and pinning the murder on Clifford. As long as he is alive and in prison, Cathleen has access to all his money. Columbo must uncover a criminal who is part of the team handling the investigation.