Stuart is a having a mid-life crisis. Desperate for something more in life, he tags along on his best friend's family vacation to Paris - then proposes to his friend's 24-year-old daughter, Rosalind, while standing under the Eiffel Tower.
A young woman follows a mysterious melody onto a remote tidal island. When she crosses back over at the next low tide, she emerges into a world where 25 years have passed.
