Amid a plague-stricken Berlin in 2032, two teenage siblings, Hans and Ellen Andernbach, uncover a haunting family secret. Locked down in their ancestral mansion, the Andernbachs navigate a world ravaged by a mutated bubonic plague, where desperation and scientific hubris intertwine. A mysterious crack in the cellar wall leads Hans and Ellen to a hidden diary belonging to Henrietta Haller, a 19th-century nurse. The diary recounts chilling experiments involving lamb blood transfusions during her career and unveils a legacy of dark secrets, forbidden practices, and moral dilemmas. As they delve deeper into Henrietta's world, they discover ties to their own lineage, culminating in the shocking revelation of an infant buried within their home. While the siblings grapple with the weight of their discovery, the shadows of the past bleed into the present, threatening their family's stability and forcing them to confront humanity's enduring desperation for survival. "Lambs' Blood" is a gripping tale of medical ethics, familial bonds, and the timeless consequences of playing God.