Plot:
In San Francisco, at a dock, a ship is unloading. A guy is skulking about the crates.
Dude tells one of his goons where the stuff is. They must stop the ship. They call a woman who will do it.
Simon Dayton stops by the house of the famous detective, Mr. Wong. Dayton explains how his life is in danger and that he has been troubled in the past few
months: break-ins, forged letters, strange occurrences, etc�
Wong will take the case and inspect the letter in the morning. As he escorts Dayton out, he saves him from being kidnapped by someone in car.
The next morning, Dayton goes to his office. His 2 business partners want a death clause signed whoever dies their business rights revert to the surviving
partners. Dayton signs the contract thought doesn�t like it. He is in too deep.
After his partners leave, he waits for Wong to arrive. Carl Roemer, an inventor, storms in and threatens Dayton for stealing the formula and not making him
a partner. As Carl is dragged away, Dayton calls the police about Roemer�s outburst.
The police arrive. The secretary discovers that Dayton�s office door is locked. They find Dayton dead on the floor. Immediately, the police suspect Carl.
Wong arrives as the police investigate the scene. Dayton died of a heart attack. Wong discovers some small glass fragments.
Wong heads to a lab to conduct an experiment. He tries to recreate the size and structure of the fragments. The pieces are a sphere and has a duplicate forged.
A psychiatrist interrogates Carl.
Captain Street mentions to Wong how sure he is of Carl waving a gun around caused Dayton�s heart attack. They see from the autopsy that Dayton died
of poison gas. Suddenly, Captain Street leaps on the notion that Carl planted the sphere.
The secretary and the office manager are questioned by the police. Wong tries to uncover if Dayton had a set daily schedule for certain activities.
Dayton�s partners, Meitzer and Willis, are questioned about the death rider on the contract.
No one seems to know a thing about the sphere.
Elsewhere, Hat Guy chews out his lackeys: Olga and guy. They need the formula off the boat and will use one of Dayton�s partners.
Wong inspects Dayton�s stolen car and finds another clue. He and Captain Street go to check Carl�s house.
Carl�s wife desperately wants her husband back. Street and Wong search Carl�s lab. Wong can�t find any sand that might indicate glass manufacture.
At Wong�s house, he is conducting an experiment to break a glass sphere. No musical instruments seem to work.
Frankenstein plays a clarinet...
Who knew a ukelele could shatter glass? Tiny Tim knew....
However, the screech of a parrot is quite effective.
Later, Wong pays a visit to one of Dayton�s partners. However, the visit is cut short when the Countess Dubois and Baron Von Krantz. Wong stays and has some
small chit-chat with the nobility.
Russell delivers some papers to Willis who gets a letter from Carl warning him to stay in the study and call the police. He locks himself in the study and calls the police.
The police head to Willis�s home. They find the study door locked and find the dead guy inside. Captain Street begins his interrogate everyone present plan. Wong
finds more glass. Street is more convinced that Carl was behind it after finding the letter.
Street grills Carl and pulls out everything but the rubber hose. Carl won�t talk. Street even tries the good cop routine.
Elsewhere, Wong gets some files easier than he should.
Carl continues to receive the third degree. The police even threaten to charge his wife.
The witnesses from Willis�s house are released.
Wong is searching in a dark room and leaves, unaware that guy spotted him.
Carl is still being questioned.
Myra, Dayton�s secretary and Street�s girlfriend, convinces him to let Carl�s wife be released.
The ship is being loaded.
Countess calls Dude and reports that Willis is dead. Wong and Meitzer are the loose ends that need to be tied up. Wong will be taken care of tonight�
Russell takes a letter from Dayton�s office and is caught by Wong.
After all this rough interrogating, Carl reveals that he overhead Meitzer plot to kill Dayton.
Street readies his men and takes Wong along.
Storming, when they reach Meitzer�s house, they find him dead. Wong finds more broken glass. Apparently, Meitzer killed himself to escape having to go to jail.
Street will have Carl released. Wong asks that Carl be brought to his house. Myra will tag along to see Wong question someone preferably more politeness than rubber
hose boyfriend.
The Baron, Countess, and Dude catch Wong. They question him who explains about Dayton. They need the formula and apparently think Wong has it. Wong gets a
glass sphere and accidentally breaks it. He tells them how deadly the poison and how insidiously it kills a person. The villain freak out and make a break for it only to have
Wong get the drop on them.
Street arrives with Carl.
Wong explains about the countess and the crimes, etc�
Wong is unsure how Meitzer was able to break the sphere. Apparently, sound waves are used. Meitzer accidentally set it off. Wong wants Carl to help him. A siren
will break the sphere. Each of the victims called the police who arrive. The police sirens broke the spheres.
The great and glorious Captain Street knew it was Carl all along.
Street and Myra fuss.
Everyone leaves, and Wong is able to enjoy some piece.