These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: The Black Cat
Complete Monster: Hjalmar Poelzig plumbed depths barely considered in films in 1934. Peolzig is a Satanist and ruler of a vicious cult who conspires and tries to sacrifice an innocent traveler to Satan. It's revealed that Poelzig, in World War I betrayed his 'friend,' Dr. Werdegast and had him sent to a prison camp so Poelzig could marry his wife. He later killed her and kept her embalmed corpse as a trophy...before marrying her and Werdegast's young daughter...and later murdering her as well.