Woman hopes to be a great singer and is encouraged by her scheming teacher. After she flops her husband, encouraged by an amorous professional singer tries opera and also flops.

Stan and Ollie are mousetrap salesmen hoping for better business in Switzerland, with Stan's theory that because there is more cheese in Switzerland, there should be more mice.

Chester Beatty and Tessie Weeks have been engaged for 5 years and going together for 15 years before that. Chester is reluctant to burden Tessie with marriage because of his secret problem. He is a sleepwalker. When Tessie finally does rope Chester into marriage, he can't get time off from his boss of 26 years, Mr. Frisbee. To resolve the problem, Chester sets out to impress his boss by securing a big sales contract of glass eyes. He takes Tessie and follows the rich doll company owner Horace B. Stanton to a lakeside resort and befriends him. However, his sleep-walking makes him a prime suspect in a thievery/murder case.