“I’ll have to look at my time sheet for — night before last, was it?” Bauer nodded and the manager disappeared into his office. Was it only night before last? Conway thought.

The manager was back in a moment. “Feature finished at nine twenty-eight exactly.” Bauer made an entry in his notebook, and then wound his wrist watch once or twice. Conway noticed it was also a stopwatch.

“I guess we’ll have to what they call re-enact the crime,” Bauer said. Conway started, but the detective went on, unheeding. “You do just exactly what you did from the time you left the theatre, and try to take the same amount of time doing it, so we can see where we’re at.”

Careful, Conway warned himself. This is the one spot that can be dangerous. There were four minutes he could not account for: the four minutes when he had been twisting the scarf around Helen’s throat and parking the car behind the plumbing shop. But he had said that they had stayed in the theater until the end of the number; there was, therefore, only a little over a minute of that time which he now had to fill with fictitious action. He knew what he was going to do; he hoped he could time it properly.

He walked at the pace they had taken: it seemed ridiculously slow to him, but the detective seemed to find it normal enough. He stopped as they had when the car had almost hit Helen. He went through the motions of unlocking the door for her and helping her in.

“I asked her to slam the door and she did,” he said. “I got her coat off the back seat and she put it around her shoulders. I started the motor and was about to back out when she discovered she couldn’t find her other glove. She rummaged through her bag,” — he pantomimed it — “and then she looked on the seat and on the floor, and then she thought it might have dropped out on the ground when she slammed the door. I got out and walked around and looked and it wasn’t there, so I got back in the car. Then she asked me if I’d go back to the theatre because she was sure she’d lost it there, and if there was anything in the world she hated it was losing one glove and having the other around to remind her of it. So I cut the motor, left the keys in the switch, and started back.”

“Just a minute.” Bauer clicked the stopwatch. “Time out. What about other people here? Did you notice?”

“I didn’t see anybody when we got here — I think we were the first ones. By the time I started back to the theatre, there were people here — a couple of cars drove out ahead of me as I was walking back to the street.” The beautiful thing, Conway reflected for the hundredth time, is that there’s no way of proving I’m lying. No one can say that I positively did not walk the length of this parking lot at nine-thirty-one Monday night, even if they round up the entire audience.

Bauer finished writing in his notebook. “Okay, let’s go on from here.”

The rest was velvet: Conway did exactly what he had done two nights before. He conversed with the absent ticketseller and doorman, and waited for their unspoken replies. He looked in the theatre himself, and then he and the manager did a very fair approximation of their conversation and search. He went through the motions of buying the popcorn, and returned to the parking lot.