Rene and Edith struggle to keep for themselves a priceless portrait stolen by the Nazis and kept in a sausage in their cellar. Rene is hiding two British airmen and is endeavouring, helped by the Resistance, to repatriate them. However, communications with London through a wireless disguised as a cockatoo add to the many embarrassments he endures. Matters come to a head with the news that the Fuhrer is to visit the town and the cafe is filled with tricksters intending to impersonate Hitler before the event...