Diagnosis Murder: Diagnosis of Murder (1992)
Convinced that his long-time patient Nick Osborn didn't murder his boss, Mark Sloan starts investigating the case himself, supported by a junior doctor and a young female pathologist.
Cast
Dick Van Dyke
Mark Sloan
Barry Van Dyke
Steve Sloan
Cynthia Gibb
Amanda Bentley
Stephen Caffrey
Jack Parker
Bill Bixby
Nick Osborne
Mariette Hartley
Kate Hamilton
Ken Kercheval
Frank Stevens
William Atherton
Eric Walker
Brynn Thayer
Anita Clifford
Vernee Watson-Johnson
Esther Wiggins
Michael MacRae
Mr. Foss
Shane Meier
Paul McKinney
Eliza Roberts
Mrs. McKinney
Shannon Marketic
Jackie Cole (uncredited)