The Caribbean Mystery is a 1945 American film noir mystery film which marked the directorial debut of Robert D. Webb. It is the third film adaptation of the 1933 novel Murder in Trinidad by John W. Vandercook to be produced by 20th Century Fox. Starring James Dunn, Sheila Ryan, and Edward Ryan. the plot finds a Brooklyn detective summoned to a Caribbean island to solve the disappearance of eight geologists who had visited an alligator-infested swamp. The lead role was rewritten especially for Dunn after his successful film comeback in A Tree Grows in Brooklyn, also produced by 20th Century Fox.