Prosperous architect David Hunter, lives with his wife Evelyn, who loves gambling and admiration, as well as his small daughter Dora, and his sister-in-law Ruth. When Evelyn tells her husband she owes $10,000 in bridge losses, she promises not to gamble or see her lover, Stephen Dabney, again if he will pay the debt. Stephen's friend, Moira Lamson, however, entices her to the country club for one last game. David and Ruth, worried by her prolonged absence, go to the club where they find her in Stephen's arms. Evelyn accuses her sister of spying on her and demands a divorce from her husband. Ruth, weary of her sister's frailties, moves out of the household and takes up nursing. Evelyn's health suffers from the strain, and now with David and Ruth gone, she is ill and alone. David and Ruth take pity on her and return. A smarter Evelyn is reunited with David.