A prosecuting attorney treats every homicide case as first degree murder and uses miniature replicas of human skulls to tally the death sentences that he garners. Then he himself is beset by the urge to murder. An above-average public domain film from Universal Pictures.
You can stream Wives under Suspicion (1938) free and legally on OldReel, via the Internet Archive.
Yes — it is in the public domain and can be watched and shared freely.