Two sentence horror story

I wrote this in response to Sacha Black’s challenge.

The painting is by Cecioni

ALI142426 Interior with a figure (oil on canvas) by Cecioni, Adriano (1838-66) oil on canvas Galleria Nazionale d'Arte Moderna, Rome, Italy Alinari Italian, out of copyright

In the dream, she lay in bed, facing the dimly-lit window, paralysed, feeling the displacement of cold air, the presence in the doorway behind. In terror, her eyes snapped open to the palely moonlit room, her pounding pulse accelerating as the presence stroked the back of her neck.