S3, E8: After sharing a very pleasant dinner with Frasier's famous psychologist mother, Diane is stunned when Frasier's mother quietly threatens to kill Diane if she doesn't leave him alone.
Starring Nancy Marchand
S3, E8: After sharing a very pleasant dinner with Frasier's famous psychologist mother, Diane is stunned when Frasier's mother quietly threatens to kill Diane if she doesn't leave him alone.