Both Audrey Totter and Robert Taylor relished making this film - Totter, because she got to play a professional woman as she did in Lady in the Lake (1946), and Taylor, because he got to act and not just be a "pretty boy".
This film did poorly at the box office for MGM, resulting in a loss of $101,000 ($1M in 2017) according to studio records.
"High Wall" has a similar premise to Alfred Hitchcock's Spellbound (1945): a doctor falls in love with someone accused of murder and attempts to treat them in an effort to jog their memory about what really happened and who the real murderer is.
One day, the filming lasted so late into the night that both Robert Taylor and Audrey Totter missed dinner. Famished, they went to the studio commissary but found it closed. They then tried to go to the restaurants but found them too crowded. Taylor then brought Totter to his home and his then-wife Barbara Stanwyck made eggs and bacon for them. Totter recalled the event fondly saying, "It was great."
The "unwritten law" mentioned by the lawyer was the assumption that juries would not find a man guilty of murder if he killed his cheating wife.