As a husband who can not give birth to a child and lives only in work, Jung Ah and Hoon who keep the couple's life together. Hoon is the vice president of a promising young company, and the president is promoted soon. Another person who burns ambition under him is Sang-doo. He is an ambition to do anything for ambition. One day, Sooke and his wife Jesse, who were invited to the house of Hoon for dinner. Mr. Sang tells his wife something and goes to Hoon 's house together. Hoon went to his wife, Jesse, who came to his invitation that day, and became addicted by unknown power and eventually got physical relationship. Hoon's wife, Jung-a, who notices this, establishes a physical relationship with Shang-doo in vengeance.