As Sung Min gets involved with a young, attractive mistress, he becomes estranged from his wife, and begins to dream of murdering her. Finally, he carries out his plan of murdering his wife. After doing that he is tormented with the phantom of his wife without knowing that she is alive. Meanwhile, Sung Min's wife, who barely saved her life, makes a plan for revenging herself on her husband.

Jong Sil, a sound effects director, is awarded a carte blanche for his ingenious invention of a coke bottle opener sound used in a commercial film for an Arab client. Ecstatic, drunk, he heads home to his wife and kids, only to end up spending the night in an apartment unit one floor above which belongs to a single woman. The preposterous one-night-stand snowballs into a major event, for which he is reported gone missing on TV. Lost, Jong Sil becomes more involved with the woman, discovering things about her, as their relationship takes an unexpected turn.

When viewed in public, the Kim's seem to have the perfect marriage. In private, however, their married life is filled with turbulence, fighting, cheating, and accusations.