A woman saves a man in turtoil, ready to jump off a building. Now, as a widower with a baby girl, Sang Hyeon welcomes Soo Min's comfort. Although they were once friends, she has becomes his best friend's wife. However, Soo Min's sympathy turns into love and then ito an obsession as deep as a crevasse.

1930s Korea, in the period of Japanese occupation, a new girl, Sook-hee, is hired as a handmaiden to a Japanese heiress, Hideko, who lives a secluded life on a large countryside estate with her domineering Uncle Kouzuki. But the maid has a secret. She is a pickpocket recruited by a swindler posing as a Japanese Count to help him seduce the Lady to steal her fortune.