Interesting and watchable, if not a little weird! I take it that the dust and the circumstances are all in the mind of Margaret as she suffers from mental illness ( you see her constantly taking medication) and there is a perfectly normal explanation for the happenings!!
It's all in her head (in short). Very similar to 'The Taming of the Shrew by Henry James.
Watchable, if you understand this genre.A depiction of a mental breakdown through happenings in Margaret's life. Self harming and delusional , Margaret spirals into further mental breakdown.