

Egon Olsen's criminal trio always gets into unlucky, comical situations when executing Egon's genius plans. After release from prison, he already has a new plan: steal a valuable German item from a secured museum in Copenhagen.

The town's wealthy benefactor dies, and leaves a bizarre bequest: unless one of the self-righteous citizens can produce an illegitimate child in 9 1/2 months, all his money goes to homeless cats, and they must start paying taxes.