The light inside the car cast shadows under Francesca Stein’s eyes. She brushed back a few loose strands of her brown hair and faked a smile, but Frost could see that she was broken down. Her face, which was always thin, looked fragile. She had her hands in her lap. Her back was arrow straight. Hot air blew from the vents, making the interior warm.

“He knew I was following him,” she said.

“Yes.”

“He played me. He lured me here, and he knew I’d make a fool of myself. No one will believe a thing I say about him now.”

“For what it’s worth, I think you’re right about him,” Frost told her, “but my own credibility isn’t going to be too high after tonight, either.”

Stein turned to face him. Something about her vulnerability made him conscious of how attractive she was. “I’m sorry that I put you in that position,” she said.

“Newman’s good at what he does,” Frost said.

“Yes, he is.” She leaned back against the headrest. He could see the slope of her neck. “Can I confess something to you, Frost? I’m not sure why. I just feel the need to say it out loud.”

He noticed that she’d used his first name, which she’d never done before. “Say whatever you like.”

“I was attracted to Darren Newman when I met him,” she said. “I hate it, I’m not proud of it, but it was chemical. I’m sure that makes no sense to you.”

“I’m a man. I’m never on safe ground trying to figure out what women want.”

“Well, you’d think I’d be smarter than that, but I’m not. I’m married. I’m older than he is. I’m a scientist. I still found him difficult to resist.”

“Did you sleep with him?”

She hesitated long enough to make him wonder what she was going to say. “No.”

“Then it sounds like you have nothing to regret,” he replied, but he wondered if she was lying.

“Oh, I have plenty of regrets when it comes to Darren,” Stein said.

The shadows made her face difficult to read. He wished that he understood her better, but this woman lived in a separate world, where he couldn’t reach her. “You’re wrong about something, you know.”

“What’s that?”

“You said I didn’t like you. I do. I didn’t think I would, but that’s just because I don’t have a great history with therapists. You’re smart, tough, and you care about your patients. I respect that.”

“Thank you.”

“I also need your help,” he said. “Another woman disappeared yesterday. We both know the danger she’s in. I need to find her. Every minute counts.”

Stein closed her eyes. “One of my patients?”

“She came to your office this week. Her name is Lucy Hagen.”