As part of his settlement with the IRS, a tax cheat agrees to pay all the money he owes within ten days. However, a suspicious IRS agent believes that the man is going to pay his taxes with yet more money that he has illegally hidden from the government, and sets out to prove his case.
Although the feds know that an importer is smuggling expensive Swiss jewelry into the US, they can't discover how he's doing it, despite his being under constant surveillance. They begin an undercover operation, hoping to discover his methods.
Customs agents discover large quantities of expensive--and undeclared--Cuban perfumes that are flooding the market. They soon discover a criminal ring that has a clever plan for smuggling the goods from Cuba into the US.
Burglar Harry Malan has a foolproof plan: he looks in the newspaper for funeral notices of people who have recently died, and then goes and robs their now-empty houses. However, a stolen bond that he has redeemed arouses the suspicions of Treasury agents, who are soon on Harry's trail.