I

The rain in Chicago didn't wash things clean. It just made the dirt wetter.

Frank Keller stood in the doorway of his South Side surgery and watched the neon sign across the street flicker through the glass. It read BAR in letters that had lost half their bulbs, and the B was out, so it read AR, which was fitting, because that's what most of his patients were—almost something, almost healed, almost gone.

He was thirty-eight years old and had spent four years as a field medic in Europe, where medicine meant deciding who lived and who died with a coin flip and a morphine syringe. He had won exactly one coin flip. The man who lost was his entire platoon, except for Frank, who lived because a German bullet had missed his heart by three inches and taken his left shoulder instead.

The surgery was small. One room, one examination table, one cabinet of medicine that he kept locked because the people who came to him at night didn't always have money, and the people who had money didn't always have names.

The first patient came at midnight, as they always did. A young man with a knife wound in his side and blood soaking through a shirt that had once been white. He was wearing a suit that cost more than Frank made in a month, and his hands were shaking.

"Help me," he said.

Frank examined the wound. Superficial. The knife had missed the artery by an inch. He cleaned it, stitched it, wrapped it, and handed the man a bill.

"How much?" the man asked.

"Five dollars."

The man counted out the bills with fingers that were still shaking. "I'm Tony. Tony Moratti's nephew."

Frank didn't react. He had learned long ago that names were just another kind of medicine—sometimes they healed, sometimes they poisoned.

"I'll send payment," Tony said, and left into the rain.

II

The patients came and went like weather. Gangsters with bullet wounds. Corrupt cops with broken ribs from fights they'd started and couldn't finish. Women with secrets they'd paid too much to keep. Frank treated them all, took their cash, and never asked questions. That was the rule. That was the only thing keeping him sane.

"Lorraine sings at the Blue Note on State Street," the man with the broken ribs had told him, and Frank had nodded and given him a prescription for painkillers that he knew the man would sell.

Lorraine Davis was twenty-eight and sang like a woman who had lived every word she was singing. Frank went to the Blue Note on a night when the rain wouldn't stop and sat in the back and listened to her sing a song about a man who loved someone he couldn't name, and for the first time in four years, he forgot about the war.

After the set, she came to his table with a glass of whiskey and sat down without asking.

"You're the night doctor," she said. It wasn't a question.

"I am."

"You look like a man who's seen too much to be a doctor and not enough to be anything else."

He smiled, which was dangerous, because it meant she was right. "What do you do, Miss Davis?"

"I sing. And I listen. And I've heard about you. The night doctor on the South Side. You treat gangsters and cops and fallen women, and you never ask questions, and you never charge the ones who can't pay."

"That's not true."

"It is to them. You don't charge them because you're a good man, and good men are rare, and that makes you dangerous."

He drank his whiskey and said nothing. She left a business card on the table and walked out into the rain, and Frank Keller, who had not thought himself capable of feeling anything after the Somme, felt something move in his chest like a muscle waking from a long sleep.

Then Moratti came.

"Big Paul" Moratti was forty-five and built like a refrigerator and just as useful. He was Frank's most important patient—his most dangerous, too. Moratti's gang controlled half of Chicago's South Side, and Frank treated his wounded with the same steady hands he used on everyone else.

But it was during the third treatment, as Frank cleaned a bullet wound from Moratti's shoulder, that the man spoke: "You were a medic, right? In the war?"

"Yes."

"What unit?"

"7th Infantry. Riley's platoon."

Moratti's face changed. Not much. Just a flicker in the eyes, a tightening around the mouth. But Frank had spent four years reading faces that were trying not to show anything, and he saw it.

"Riley," Moratti said slowly. "Sergeant Riley. James Riley."

"Yes."

"My men... we had an operation. Near the Argonne. We took a village. There were... casualties."

Frank's hands stopped moving. The wound was still bleeding. He didn't notice.

"Your men," he said quietly, "killed my platoon. All of them. Except me."

Moratti looked at him for a long time. Then he said, "I didn't give the order."

"You were there."

"I was there."

Frank finished cleaning the wound. Stitched it. Wrapped it. Handed him a bill. Moratti paid without counting.

III

The choice came on a Tuesday, which was unlucky, because Tuesdays were always unlucky for Frank.

Moratti was brought to the surgery at 2 AM, shot three times in the chest by a rival gang. He was bleeding fast, and his breathing was shallow, and his eyes were open and fixed on the ceiling like a man who had finally understood what was waiting for him.

Frank examined him. Two bullets in the chest. One near the heart. He could save him. He had saved worse. But this was Moratti. This was the man whose men had killed Riley and his entire platoon. This was the man who had looked at Frank and told him, without words, that he was responsible.

Lorraine stood in the doorway and said nothing. She had been coming to the surgery more often lately, and Frank had started looking forward to her visits, which was dangerous, because wanting things was how men got killed.

"Frank," she said. "He's a gangster."

"He's a patient."

"He's the reason your friends are dead."

"He's a man who's bleeding on my table."

She was quiet for a long time. Then she said, "You're not God, Frank. You're just a doctor."

He looked at Moratti, bleeding and dying and forty-five years old, and he thought of Riley, dead at twenty-three in a French field, and he made the only choice a doctor could make.

He operated for six hours.

When it was over, Frank Keller sat on the floor beside the examination table and cried. Not quietly. Not secretly. He cried like a man who had been holding back a river for four years and finally let it break through the dam. Lorraine stood in the doorway and watched him cry, and she understood, for the first time, what the war had cost him, and what he was paying for it every night in this surgery, one bleeding man at a time.

IV

Moratti died the next morning. Not from the bullets. From a heart attack, brought on by infection and stress and the slow poison of a life built on violence. Frank had saved him for exactly twelve hours, and then the city had taken him back.

Lorraine came to the surgery at dawn and found Frank standing at the window, watching the rain start again.

"Did you save him?" she asked.

"I did what I had to do."

"What was the point?"

He didn't answer. He couldn't. The answer was in the crying he had done at 8 AM, when no one was watching, and in the bill he had given Moratti's nephew the night before, which had been exactly five dollars, which was what Frank charged everyone, regardless of who they were or what they had done.

He walked to the window and looked out at Chicago. The rain was falling on the South Side like it always did, washing nothing clean, just making the dirt wetter. Somewhere, a jazz band was setting up for the evening shift. Somewhere, a man named Tony Moratti was counting money that belonged to a dead uncle. And in this room, a man was dead who had been alive six hours ago, and Frank Keller was a doctor who had saved him and failed him and would do it again tomorrow.

He turned from the window and walked back to the examination table and picked up his instruments and began to clean them, because that's what doctors did, and that was the only thing in this city that was real.