Hubert is a French policeman with very sharp methods. After being forced to take 2 months off by his boss, who doesn't share his view on working methods, he goes back to Japan, where he used to work 19 years ago, to settle the probate of his girlfriend who left him shortly after marriage without a trace.

Biwako is a vain, middle-aged actress who witnesses a brutal murder. Realizing that the very public life of the woman makes their sole witness vulnerable to the killers, the police assign two officers to safeguard her until the trial. In the interim, the lives of Biwako and everyone around her are changed in unexpected ways.