For a deep dive into the episode's plot and directing, you can watch this full review:
Art critic Dale Kingston (played by Ross Martin) murders his wealthy uncle to inherit a valuable art collection, framing his aunt in the process. Columbo subtitles English S01E04
You can find official English [CC] subtitles for this episode on Amazon Prime Video, which also offers "English Dialogue Boost" options to improve clarity. For a deep dive into the episode's plot