As a Man Thinks: Prominent New York magazine publisher Frank Clayton visits Paris, France,with his wife Elinor and young son Dick. He is shown around the city by Benjamin De Lota, an art critic who is a contributor to Clayton's magazine, and among the people he introduces to Frank is model Mimi Chardenet. Frank is immediately taken with the young beauty, and they begin an affair. When Elinor happens upon her husband and Mimi walking together, he introduces her as a new writer for his magazine. However, when they return to New York, Elinor learns of his fling with Mimi. Complications ensue.