In the film Psycho (1960) in which Vera Miles co-starred, the character Norman Bates gives the famous line "Why, she wouldn't even harm a fly". In this episode, the character Viveca Scott played by Ms. Miles gives the line to the ever inquisitive Detective Columbo "I didn't kill Karl Lessing. I couldn't kill a fly."
In the third scene of the movie, we get to see excerpts from a vintage Universal musical. Actually, these selections have been taken from When Willie Comes Marching Home (1950), in which Vera Miles made her first movie appearance.