When Bruce Blake witnesses three captains going down with their ships in identical ways he begins to wonder about a connection. But when he sees one breathing underwater, and thinks about all three captains' initials, he realizes he might have been dealing with Davy Jones himself.
Orry Conn kills the inventor of a duplicating machine and creates a duplicate of himself to take the rap. But later he realizes that whatever happens to the original or the duplicate happens to the other, and, unfortunately for him, his duplicate is sentenced to die!
Emmet Mason purchases a lamp accompanied by a legend that the owner must keep it lit for ten years or be cursed with death. Mason protects the lamp at all costs until it is destroyed in a fire and a blue ruby found inside. The curse was a cover for the stolen gem, everyone is certain, except for Mason, who still wonders about the curse.