A police inspector tracks a notorious jewel thief, 'Diamond-Lasse,' to a hotel filled with eccentrics.
Edit Carlson is having trouble courting car mechanic Helge Malm, whose motto is "me mary? - never!", and when he reveals that he's about to receive an inheritance, Edit's sister Tora sets her sight on him as well.
A happy-go-lucky husband has a wife bitten with social aspirations and this leads to several social mishaps.
Åke is employed as a singer in a revue tour and his uncle Karlsson becomes the tour bus driver.
