1 - Close on Kate's face. Her eyes are wide with fear. Her hand covers her mouth, as if in shock and horror. The background details are not visible here.
2 - Pull out to show Kate is standing on an apartment building balcony. She keeps the one hand covering her mouth in horror; the other holds onto the balcony railing, as if bracing herself. It's not clear how high up she is, but she is alone. The sliding door is open behind her.
3 - Kate holds the same position, but her expression shifts - she looks determined here, like she's come to a decision.
4 - Kate holds the look of determination, but lets go of the balcony railing and taps her lip pensively with the hand that was previously covering her mouth.
KATE: He fell.
5 - Kate has gone inside, leaving the balcony empty. She is not visible.
KATE (from within): Hello, 911?