In the shadow of the Great War, a brilliant but haunted physician, Dr. Emil Hart, seeks to redefine the limits of medical science and save lives on the battlefield. Driven by a relentless idealism and tormented by the suffering he witnesses daily, Hart begins documenting his radical experiments in a secret diary – a record of his greatest discoveries, his deepest fears, and the ethical compromises he must make.

But as the war drags on and the body count rises, Hart’s work becomes increasingly dangerous. Pressured by the military to deliver results at any cost, he crosses moral and scientific boundaries he once swore to uphold. His methods, initially hailed as groundbreaking, soon reveal horrific unintended consequences. Patients begin to die under mysterious circumstances; whispers spread through the hospital wards of experiments gone wrong, of soldiers turned into test subjects.

Isolated from his colleagues and mistrusted by those around him, Hart becomes obsessed with proving his theories, even as his own sanity begins to unravel. His diary grows darker and more frantic, a chilling chronicle of a man consumed by ambition and guilt. Meanwhile, the war outside creeps closer, the hospital becomes a battleground itself, and Hart is forced to confront the ultimate question: how much of one’s humanity can be sacrificed in the name of progress?

Dr. Hart’s Diary is a gripping psychological drama about the seductive dangers of genius, the horrors of war, and the thin line between healer and monster. As the pages of the diary reveal the depths of Hart’s obsession, the audience is left to wonder: is he a visionary ahead of his time – or simply another casualty of a world gone mad?

Lead Cast

• Dagny Servaes
• Heinrich Schroth
• Käthe Haack