Concept: Sherlock Holmes adaptation with Watson providing film noir style voiceover narration, except it’s soon apparent that Watson is a somewhat less-than-reliable narrator.
Though the tone and content of Watson’s voiceover is broadly consistent with the original stories, when compared with the accompanying on-screen events it becomes clear that Watson-the-narrator is frequently, at the very least, delicately understating how things really went down, and occasionally lying through his teeth, particularly when the on-screen “truth” would make Holmes or himself look foolish.
While neither the version of events given by the narration nor the version of events concurrently depicted on screen are particularly comedic in themselves, the combined effect of juxtaposing the two is often outright farcical.