KNOCKING **** Sweden 2021 Dir: Frida Kempff. 78 mins Shot in a suitably confined screen ratio (1.66:1) for maximum claustrophobia, this is an inventively executed, intense entry in the “is-she-or-isn’t-she-going-mental” sub-genre. Molly (a superb, empathetic performance by Cecilia Milocco) feels the time is right to return to “normality” after a…