A chemist experimenting with different formulas stumbles upon an ingredient that, when added to beer, makes it absolutely irresistible. Before he realizes it, an international spy is after him to try to get the formula for himself.

A Harvard University student finds a strange letter that seems to be signed by George Washington. When trying to contact an expert (Prof. Chandler) to authenticate it, he is murdered but the letter disappears. Then Chandler, who does not know anything about the case, gets chased by the mafia and haunted by a TV reporter (Polly Bishop).