 Surprised when the Inspector refuses to extradite the Professor, the Jamaican Inspector recounts a story told in flashback.Devil may care adventurer Brannigan has won the ship "Manfish" and its first mate Swede in a poker game but keeps away from the "Manfish"'s creditors.During a drunken evening out Brannigan is attracted to a woman sitting with an older man called "the Professor" with the two brawling over her.