Bachelor Mother is a 1932 pre-Code action film directed by Charles Hutchison.
A conniving young man is brought up on charges of reckless driving.
To "prove" his innocence and good character, he goes to a nursing home and adopts an old woman whom he presents as his loving mother.
Unfortunately for him, she really gets into her role and when he falls in love with a seductive, shady lady, the old lady does all she can to protect him from her; this includes getting him tossed in jail and shooting the young trollop.
Afterward, the old lady must stand trial.