Much ado about a safe in the floor of the house after Ma has decided everybody should give Ma their money because the family has to become more thrifty.
Hennie has an art expert interested in an icon he stole. However, the art expert wants a certificate that proves the icon is real. Since Hennie doesn't know anything about art he didn't steal the certificate and asks Johnny and Kees to steal it.
The family is planning a trip to Aunt Agaath. Johnny however, forgot that he also planned a drag race at the same day so he is doing everything to get out of the family visit.
Ma suffers from a terrible tooth ache. When Johnny meets a so called dentist at the coffee house, he thinks the problem can be solved on short notice. Meanwhile, daughter Kees thinks she has met the love of her life.
Johnny trusts son Kees with his money so Kees can give it to Hennie to bet on the horse races. However, before Kees meets Hennie he already has lost the money. Kees is trying everything to make some money before Johnny gets back.
Kees might have a very dangerous virus and the whole family (including Sjakie, who happened to be visiting the family) have to stay indoors for the next twenty-four hours.