The Caribbean Mystery

Eight geologists employed by the United Oil Company have disappeared after visiting an alligator-infested swamp in the Caribbean rumored to contain pirate gold. The police commissioner calls in an American detective, Mr. Smith, to solve the case. The island's officials – the governor, the police commissioner, the police lieutenant, and the physician/coroner – are unimpressed with Smith's wise-cracking Brooklyn persona, and Smith in turn makes fun of their belief that quicksand and alligators killed the geologists, especially after he shows them the hole in his hat caused by a bullet he received while touring the swamp. Smith expresses his nervousness over an ornamental dagger displayed in the governor's office. Soon Smith's assistant, Gates, is found dead in his hotel room.

Smith receives an anonymous telephone message telling him to be in his room at midnight. A few minutes before twelve, he hears whistling from the garden, goes to the door, and narrowly misses a dagger being thrown at him. He leaves the dagger in his room to inquire at the reception desk, but when he returns, the dagger is gone. At midnight, Mrs. Jean Gilbert, the hotel's hostess, comes to his room. She tells Smith that Gates had befriended her during his visit and gave her a treasure map to give to Smith should something happen to him. She explains that the swamp completely encircles the island, making it inaccessible to the many who have come over the years to search for pirate gold. Smith escorts her to the hallway and watches her enter her room, then hears a bloodcurdling scream and finds her dead with the same dagger in her heart.

The police commissioner, Colonel Lane, and his daughter Linda appear to have been kidnapped to the island. Smith enlists the help of the governor's son, who is in love with Linda, and they wander in the swamp for two days trying to find the island. To attract attention, Smith fires his pistol; the pair are found and taken to a village run by Captain Van den Bark, who welcomes them and sends them off with his aide who has orders to kill them. Smith manages to wound the aide with his own gun and escapes into the swamp while Van den Bark sends men out to search for them. Meanwhile, Van den Bark and his aide pack up all the pirate gold they have extracted from the swamp and prepare to leave the island. They are caught in the act by Smith, who escapes the dagger-throwing aide and puts him away.

Smith leads Lane, Linda, the governor's son, and Van den Bark out to Van den Bark's launch and prepares to depart. He gives his gun to Lane to stand guard over Van den Bark, but Lane shoots him. Smith pretends that Van den Bark is not fatally wounded, and they return to the administration office. Smith then sets up an elaborate ruse with a doctor at the hospital, having Van den Bark's body placed on a bed in clear sight of the garden. Smith watches from the bushes as all the island officials come to the hospital, and sees the physician/coroner throw a dagger at Van den Bark to kill him. The physician then admits to his own smuggling operation of pirate gold and his murdering the geologists who interfered with it. The case solved, Smith and the governor's son engage in a friendly game of darts.

• James Dunn as Mr. Smith
• Sheila Ryan as Mrs. Jean Gilbert
• Edward Ryan as Gerald McCracken Jr.
• Jackie Paley as Linda Lane
• Reed Hadley as Dr. Rene Marcel
• Roy Roberts as Captain Van den Bark
• Richard Shaw as Lieutenant Bowman Hall
• William Forrest as Colonel Lane
• Roy Gordon as Governor Gerald McCracken Sr.
• Virginia Walker as Adelaide Marcel

The Caribbean Mystery was released in September 1945.[1] It had its New York premiere in mid-August.[1]

The Harrisburg Telegraph singled out James Dunn as "the top performer in the cast in his part as the easy-going, wise-guy detective who has his employers wondering how he ever acquired a reputation as a master sleuth".[7] This review also noted "a good deal of suspense and not a few thrills, including a knifing and a few shootings".[7] The Brooklyn Daily Eagle credited Robert Webb's direction for maintaining the suspense, while noting that the film "has very little novelty, … but it is a walloping good murder story".[2]

The Rock Island Argus, however, was unimpressed with Dunn's performance. This review also regretted the swift demise of Sheila Ryan, whom it called the "most attractive member of the cast".[4]

The Philadelphia Inquirer roundly condemned the acting, directing, and screenwriting, categorizing the film as an "amateurish mish-mash about quicksands, killers and buried pirate gold on an unidentified island down in the Caribbean". This review contends that Dunn, who had just made a brilliant comeback in A Tree Grows in Brooklyn, "surely deserved something better", but credits him for taking the film's deficiencies "in stride like the veteran he is".[8]

In a contemporary review, TV Guide gave the film 2 out of 4 stars and called it "A short, taut, well-done thriller".[9]

• The Caribbean Mystery at IMDb
• The Caribbean Mystery at the American Film Institute Catalog