Toftlund-Holst, the tranquil place on the Baltic Sea, just before Christmas: everything could be so contemplative, but the mood in the Torkelsen house is cloudy. The lease of the restaurant "Four Mermaids" expires and the new owner Nick Winter does not want to extend it ...

The New York lawyer Willam Singer receives three letters, that his father's cousin from Germany wrote to him over the last 5 decades, describing, that she hosted three people in her cellar for more than 60 years. Singer tries to find out, if she wrote the truth.