The stooges are door-to-door salesman peddling a weight reducing machine, until they come to the house of an eccentric inventor, where they are mistaken for new caretakers, are left to guard his house, and must contend with enemy spies and a mysterious pie thrower.
Moe Howard
as Moe
Larry Fine
as Larry
Curly Howard
as Curly
Lew Kelly
as Prof. J. O. Dunkfeather
Stanley Brown
as Wilson, the Reporter
Theodore Lorch
as Graves, the Inventor
Charles Middleton
as Graves' Valet
Stanley Blystone
as Spy Leader
Helen Servis
as Ultra-Thin Housewife
Symona Boniface
as Plumpish Housewife
Shirley Patterson
as Perkins, the Secretary
Heinie Conklin
as Devil Costume Spy