Elmer Triple is a chemist who is a constant source of frustration to his professor boss, who feels that while he showed promise at a young age he has ultimately never used his gifts for anything useful.
Elmer's second invention can make things grow to three times their original size, which he demonstrates on a parrot and a goldfish.
Elmer's final invention is a candy which he claims will make women fall in love with the first person they see.
After taking the gangsters to the police station Elmer is hailed as a genius by numerous other professors to the university and offers them some of the growth formula he demonstrated earlier which they accept.
However the two are soon chased down the street by the professors who have in fact shrunken down to the size of dwarfs due to Elmer supplying them with the wrong formula.