A hint

"Elva!" There was a loud bang on the door, "Elva! Open up!" The person knocked the door as she kept calling. "It's me Rosa! Open the damn door, it's important!" She banged the door impatiently.

Elva jerked from her sleep panting, she was soaked with sweat, even her eyes were weirdly moisty. Was she crying in her sleep again? She sat up looking at the door with a deep frown, "El, come on now! Open the door!" Rosa banged the door again and again until it opened abruptly, her hand which was about to knock again was hanging midair. "What happened Rosa? Is everything alright?" Rosa walked inside and shut the door pulling her to the bed, she then let out a breath. Ignoring how a mess she looked now, Rosa went ahead and said what brought her there.

"Few days ago, you have installed some hidden CCTV cameras or something right?" Right, she did and hasn't even worn the bracelet that she was told to do by that man, many things happened and she was too busy to remember that. But the cameras were