It's the 24th of December: The emergency department of a district hospital is preparing for a turbulent night: head physician Professor Singer, who has lost his wife and is even more involved in the work, and the surgeon Hannah Cornelsen, who talks about the work can forget that she and her husband have dwelt apart. On Christmas Eve, the hospital will become a microcosm in which a wide variety of people and destinies will meet - and for everyone, life will be in a completely different light next morning.