OrsonWelles directed and starred in this 1947 FilmNoir classic as Irishman Michael O'Hara, who meets the beautiful [[FemmeFatale Elsa]], the titular Lady, after saving her from muggers in [[NewYorkCity Central Park]]. She offers him a job aboard her yacht, but things soon take a turn for the worse when Micheal gets involved in a plot to help a man [[FakingTheDead fake his death]].
!!Tropes appearing in this film include:
* DeathFakedForYou: [[spoiler: It doesn't work.]]
* ExecutiveMeddling: As was often the case with Welles' work. The original cut ran around 155 minutes (including a much-extended funhouse climax) and had a much different musical score (the HallOfMirrors segment was intended to play entirely without music). Studio execs ended up cutting almost half the runtime and commissioning a jazzy score designed to [[MickeyMousing underline the action]].
* FakingTheDead: [[spoiler: Subverted -- he certainly succeeds on the "dead" end of things, but the "fake" [[KilledOffForReal is entirely lacking]].]]
* FemmeFatale: Elsa
* FilmOfTheBook: Actually based on the novel ''If I Die Before I Wake'' by Sherwood King.
* GenreSavvy: Michael is almost acutely aware that something bad awaits him if he goes along with Elsa and her husband. He's even tries to get hired on the first merchant ship leaving New York just to avoid being pulled into it. It's only the promise a very nice paycheck that causes him to reconsider and even then he's still leery about it.
* HallOfMirrors: TropeCodifier. Probably not the TropeMaker as this trope was used for comic effect by Creator/CharlieChaplin in ''TheCircus'' some 20 years before.
* MutualKill: [[spoiler: Elsa and her husband shoot each other.]]
* OohMeAccentsSlipping: Welles struggles with an Irish accent.
* UnspokenPlanGuarantee: The audience knows how they are going to try to fake Grisby's death. Even though it's not the whole story, it doesn't go quite as planned.
* YourCheatingHeart: Ironically, Michael knows how dangerous this is. He even remarks "I didn't like my girlfriends to have husbands"