The Electrical Life of Louis Wain

https://www.imdb.com/title/tt10687506/?ref_=nv_sr_srsg_0

English artist Louis Wain rises to prominence at the end of the 19th century for his surreal cat paintings that seemed to reflect his declining sanity.

Benedict Cumberbatch
as Louis Wain

Dorothy Atkinson
as Mrs. DuFrayne