The Samurai and the Prisoner

When Lord Murashige rises up against the tyrannical Oda, he finds himself besieged within the walls of his own castle. Isolated, he is confronted with a series of mysterious crimes that shatter the fragile order of his court, plunging the fortress into fear and suspicion. With Oda’s army closing in and a traitor hiding among his ranks, Murashige is forced into an uneasy alliance with Kanbei, a brilliant and dangerous strategist held prisoner in the dungeon, as he must outwit his enemies and uncover the truth before time runs out.

This multifaceted film… has the intrigue of an Agatha Christie story and the gravitas of an Akira Kurosawa epic. – Inverse