This movie, which shows some amazing views of San Francisco in the 50s, was a pilot for a TV show of the same name.
It was CBS’s response to NBC’s hugely successful Dragnet and set in SF as counterpoint to that show’s LA setting. Syndicated reruns of the series were broadcast under the title San Francisco Beat.
You can watch the whole film here:
I was just loaned a DVD set of the first 16 episodes but have been told that all 6 seasons (1954-1960) are available from various sources online.