"Nope." The Doctor said as she pressed the button. The high pitch noise emitted and the PA system picked it up. The sound echoed through the building. The Doctor leaning over it holding her breath as she waited. After about 15 seconds, but what felt like a much longer time there was the sound of a bodies hitting the floor outside the room. In response the Doctor let out her breath of air. 

"It worked." She gave Nora a happy smile. "Come on." She picked up the machine and opened the door that led out. Outside the room were several unconscious people the Doctor paused and checked to make sure they all had pulses. "Let's get you and your sister to the wedding. I'll come back and help these people." The Doctor led the way back to the TARDIS. Outside of it the two men from earlier were starting to sit up.

"Oye, my head." The man who had the body of the kidnapper said as he pushed himself into a sitting position.

"You'll be alright mate." The Doctor said kneeling beside him. "What's the last thing you remember?"

"I was gettin' off shift at the factory." He replied looking between the Doctor and Nora perplexed.

"What's the date?" The Doctor asked.

"Uh, January seventh." The Doctor shook her head. 

"We'll talk when I get back. For now there's a bunch of people unconscious throughout the building. If you find anyone not unconscious and they are acting suspicious press this button." She handed over the machine. The man nodded taking the machine from the Doctor.