"A mother's strategy is the only map you need. Until the terrain is your own home." In a world where the line between family and duty is razor-thin, Ma Langqing and Jing He aren't just sisters—they are elite detectives in a high-stakes police unit led by their own mother, the formidable Director Madam Lang. When a routine operation to capture a dangerous fugitive spirals into a catastrophic failure, the family’s private history and public duty collide. For years, they have fought a quiet war against the shadows of a past betrayal. Now, as they hunt a criminal empire that stretches from narrow city alleys to the highest seats of power, they must navigate a minefield of internal politics, personal vendettas, and lethal conspiracies. Of Blood and Command is an intense psychological thriller that explores the unbreakable—and often dangerous—bond of a mother and her daughters. It is a story of survival, sharp intelligence, and the relentless pursuit of justice, where the ultimate test is not just catching a killer, but keeping the family together when the world tries to tear them apart.