Below are some of the points that should be taken into account if the following scenario is true:
00:20, the occupant has left the apartment, is holding the elevator button in the hall, and is outside the vision of the camera. He says calmly, "hey, get out of the elevator."
00:24, she checks the hallway, and sees the man standing by the button. She positions herself to view the the man, and is waiting for the elevator doors to shut. The occupant holds the button to the elevator, and calmly asks who she is.
(1) After hearing the occupant's voice, Elisa wasn't able to tell which direction it was from, hence looking both ways (to the right side first, in fact).
(2) Even after seeing someone outside, she quickly retreats back inside, ignoring the occupant.
00:37, She approaches the man and attempts to apologize.
00:48, the occupant tells her to get out of the elevator. She shyly and slowly begins to, but sees danger.
(1) The assumption is that the man is on the left side, yet when Elisa slowly steps out, her head is facing right.
00:53, the occupant pulls out a gun, and this causes her to jump. The occupant says, "spread your legs", and she complies. The occupant is now telling her to come closer to him. She doesn't understand there's a camera in the elevator, while the occupant is fully aware of this.
(1) Upon seeing the gun, Elisa jumps forward.
(2) After complying with the spreading of legs due to occupant possessing a gun, she then quickly (maybe going against the wishes of the occupant) closes her legs and steps back.
1:03, the occupant grabs her at gunpoint, makes her place her hands on her head, demands to know who she is and what she's doing there, and tells her to get out of here or he'll kill her, and he says, "you've got 20-seconds to get out of here". and he releases her.
1:30, she enters the elevator and is terrified. In a panic, she hits all the buttons in the middle row, but she keeps hitting the "HOLD DOOR" button. The man is counting down, and she doesn't understand why she can't leave.
1:50, exactly 20-seconds later, the occupant hits the button again and orders her to come back. She's in tears and is trying to say she's confused. The occupant doesn't believe her.
(1) With only 20 seconds to leave, Elisa walks slowly back into the elevator. (quicker ways to leave are possible, but maybe the occupant demanded her to leave by elevator).
(2) After repeatedly pressing the buttons, Elisa doesn't wait for the doors to close at all, she just walks back out, tidying her hair on the way.
1:57, the occupant grabs her neck and places his gun on the back of her head, she's pulling away, giving the strange look about her arms, because she's trying to trigger the sensor to keep the door open.
2:05, the occupant notices what she's doing, grabs her neck, and gives her a yank and tells her to shut up, and she completely submits.
2:12, she begins begging for her life and/or pleading with the occupant to believe her.
2:20, the occupant orders her to be quiet.
(1) With a gun pointed behind her, Elisa performs big motions with her hands and legs.
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Needless to say, I am not convinced of this scenario yet.