On a cruise ship, Boston Blackie helps Mary get settled in, but find that she has a body for a bunkmate. Farraday immediately suspects that Blackie somehow did it. Who is that mysterious character who’s seen looking into a porthole?
Martha Vale might know something about the murdered woman. Clues begin to emerge, but will Farraday catch on to the answer that Blackie has already figured out? Is Blackie holding something back?
A ship steward claims to know who the killer is and why they did it. Before he can talk, the steward winds up dead as well. Now Farrady thinks Blackie killed two people.
Blackie makes his break to do his own investigation. Now that he has the murder figured out, he hands over the killer, and explains the elaborate smuggling plan to Farraday.
PS: A scene has a tear gas bomb going off to help Blackie get away. Though the scene has Blackie and Farraday getting all emotional as they both tear up, it doesn’t work that way in reality. Tear gas irritates the respiraory system, and causes your tear ducts and mucus in your sinuses to go into hyperdrive to protect against the irritant. That’s about it. No emotions or sobbing, just a lot of liquids pouring from your eyes and nose.