When Franka, who suffers from a light allergy, learns from her sister that they have to give up their apartment together, Franka's whole world collapses.

A ship from the GDR fishing fleet is on its way home. The work is done, the hold full of fish. Captain Nipmerow could be satisfied with that, but he has a completely different problem to deal with - a matter about which he also owes the shipping company a statement.