Awkward silence

After reaching her house the first thing Ava did was to call the chief security guard Berlin. When he reached she told him,

"Berlin I want that whole day's CCTV footage of that day when I told you someone had tried to enter into my room. And that to be now!" She told him in a very serious commanding voice. By hearing out this his expression got sullen suddenly as if he is going to caught up by doing something wrong but immediately he masked his expression before she can able to catch him.

"What happened? Have you any problem?" She asked him when she didn't get any respond from him. 

"Ah...no mam! Don't worry I'm bringing it to you right away." Saying this he left from there to bring the CCTV footage.

"Strange!" She muttered.

After about ten minutes Berlin came back holding a square like flat box in his hand. 

"Here is the footage of that day mam." He told her while handing her the footage.