Don't Neglect Your Wife (1921)

Feeling neglected by her husband, the wife of a prominent San Francisco doctor finds herself attracted to a young newspaper reporter. Although they haven't brought their relationship to "the next level", her husband finds out about them and forces the young man to leave town. Dejected, he gives up his career, moves to New York, and winds up an alcoholic in one of the most dangerous neighborhoods in the city. The doctor's wife sets out to find him.