Not sure when this came to Netflix, but I found it Saturday night after finishing Season 2 of The Bletchley Circle (also recommended).
Inspired by, but not based on the life of, Chris Sievey, it was a weird little film. My wife put up with it. I rather enjoyed the music, most of which was performed by the actors in the film (two of whom are professional musicians). The long list of songs in the closing credits is amusing, as it includes several two-line, 10-second “songs” attempted by the narrator. I would like to hear a longer version of Lady in the Red Coat.