Mrs. Yun makes a welcome trip outside her home and runs into an old friend, Young Hye. Through her, Yun meets Han Sang Ho who is a young businessman burning with ambition. A rival company of Sang Ho, Dong Il Company appears. They compete for the subway construction bidding. Managing director Heo of Dong Il, who is Yun’s husband, plans to use his beautiful wife to entrap his competitors. The rivalry betweenSang Ho and managing director Heo begins. Heo throws aside his wife and concentrates only on business. He begins to have doubts about his actions and goes looking for his wife. On the other hand, Sang Ho is completely crazy about Yun. Out of jealousy, his mistress stabs Sang Ho with a knife and then terminates herself.