Japanese and Finnish detectives uncover a global cult behind ritualistic murders.

Spanning from the battlefields of WWII to present-day Tokyo and Finland, Blood & Sweat weaves a chilling tale of war, family, and faith turned fanaticism. Detective Aki Suzumiya investigates a string of ritualistic murders that echo across continents, forcing her into an uneasy alliance with Finnish detective Jon Laine and shadowy hacker Zetor.

As the case deepens, Aki uncovers a secret cult born from a wartime pact between three soldiers and the blood of a sacred deer. Betrayals, conspiracies, and ancestral ties lead her to a horrifying truth: her own family may be at the center of the cult's deadly rituals.