Adapted from Sayako Nagai’s Naoki Prize–winning novel, this action drama blends Edo-period mystery with emotional heft. Tasuku Emoto and Ken Watanabe lead an exceptional ensemble, while period-master Takashi Minamoto directs with elegance, tension, and humane insight—making this a smart, gripping, crowd-pleasing period drama. Its theatrical setting and twist-driven narrative reward attentive viewers richly.