In the towering corridors of City Hospital, Dr. Alexander Mors—the Angel of Death—carries a somber secret. With his rare gift, he stands at the threshold of mortality, guiding the souls that pass through his care. Alongside him, his sister, Elizabeth Vita, serves as a beacon of hope in the chaos, an EMT with the power to shield the living from spectral harm. They are the guardians at the brink, where life's final breath meets the afterworld's embrace.