A party of yachting jet-setters visit French Saigon, where they meet lovely Manon deVargnes, a second-class citizen not allowed to leave the country due to her part-Oriental ancestry. When the others leave, playboy Bill Carey stays behind to woo Manon; but all his efforts to get her out of the country with him run into a brick wall. And Pierre Delaroch, her wealthy former admirer, waits for him to give up...

Dr. Cross, a psychiatrist, is treating a young woman, Janet Stewart, who is in a coma-state, brought on when she heard loud arguing, went to her window and saw a man strike his wife with a candlestick and kill her. As she comes out of her shock, she recognizes Dr. Cross as the killer. He takes her to his sanitarium and urged by his nurse/lover, Elaine Jordan, gives Janet an overdose of insulin. But he can't bring himself to murder her in cold blood and asks Elaine to get the medicine to save her. She refuses, they argue, and he strangles her. He saves Janet's life, but now faces two murder charges.

This western begins with St. Louis resident Lutie Cameron (Katharine Hepburn) marrying New Mexico cattleman Col. James B. 'Jim' Brewton (Spencer Tracy) after a short courtship. When she arrives in "Salt Fork, NM" she finds that her new husband is considered by the locals to be a tyrant who uses force to keep homesteaders off the government owned land he uses for grazing his cattle--the so-called Sea of Grass. Lutie, has difficulty reconciling her husband's beliefs and passions with her own.

Warren Haggerty is the chief editor of the New York Evening Star. He keeps on delaying his marriage...