Nishi is an advertising executive for a caramel company that is planning to launch a new product, in fierce competition with two other companies.

Yuko is sent to the coastal regions to be raised away from the rest of her sophisticated family where she finds out from her ill grandmother that she is not who she thought she was.

Tied to a mountain between her brutalizing spouse and her secret lover, disaster strikes; the authorities accuse her of murder and prompt a confession.