Here's Fritz Lang's The Woman in the Window from 1944, in which a philosophy professor who lectures on the morality of murder accidentally commits one. Maybe. Cat and Dan break down the Fawlty Towers plot structure as a film noir device, tearaway suit set swaps and declining to drink poison.
Dan and Cat have already watched this one. If you'd like to hear what they thought, Patreon is where it's at.
If you'd rather wait, that's entirely reasonable.