Shinku is a compelling drama that focuses on the strange relationship that develops between two people who find their lives irrevocably changed as a result of a horrible multiple homicide. The first person traumatized is the lone survivor of the terrible family bloodbath, a girl who grows up to be a pretty college student. The second person affected by this heinous crime is the daughter of the murderer, a young girl who ends up becoming a tattooed bartender. A full decade after the crime, the killer is finally going to be executed, and the surviving member of the massacre decides to reach out and befriend the murderer's daughter. A tentative, odd sort of friendship blossoms between these two people, both of whom seem to have little in common personally, and every reason in the world for not wanting to meet. Yet they do, but not without reservations. And really, is this friendship quite what it seems? Or is it all part of some twisted plan for vengeance?

Un jour à Tokyo, un fou tue une famille toute entière. Seule l'aînée de la famille, qui était en voyage scolaire lors du drame, survit.9 ans plus tard, elle rencontre par hasard, la fille du tueur qui a décimé toute sa famille.Elle jure vengeance en tuant à son tour sa fille, mais peu à peu, une étrange relation va aboutir entre les jeunes filles qui ont le même âge. Kanako se vengera-t-elle en la tuant ? Où va mener leur étrange relation ?