Found footage...

The Beating of a Moth's Wing

Astrid is a 19-year-old 3rd year film student in Berlin, who all her life has lived in fear she will inherit her mother’s mental illness. Seeking a story for her grad film, she starts to record with her 16mm camera the mysterious, glamorous woman in her fifties on the 5th floor opposite hers, who dresses like Marilyn Monroe. As the moths below beat their wings on a courtyard lamp, unbeknown to Astrid her estranged mother, having escaped from a psychiatric unit, is en route to see her.

Starring Béatrice Dalle. Written and directed by Tim Pope.