Anna is content with her well-ordered life in San Francisco. But her world is turned upside down when her beloved grandfather, Max, reveals a startling secret: Anna is part of an aristocratic family who lost everything during World War II. What's more, Max was forced to leave behind a precious item over seventy years ago in their estate in old Prussia. It's now his ardent wish that Anna retrieve it. Anna burns with questions as she heads for Germany: What memento could be so important to her grandfather? And why did he keep their history hidden? As she searches for answers, she finds herself drawn to Wil, a man who may hold the key to unlock the mystery. Together they discover that her family's secrets are linked with an abandoned apartment in Paris, and these secrets go deeper than she ever imagined. Alternating between 1930s Europe and the present, The House by the Lake illuminates the destiny of a family caught in the tumult of history.