Separated by sixty years, Eva's and Connie's stories become inextricably intertwined as Eva unravels the mystery of how six students went into the fallout shelter all those years ago . . . but only five came out.

Inheriting a Parisian apartment that was abandoned after World War II, Alice teams up with a charming student to uncover the story of a long-lost great aunt who hid her work with the Resistance behind the persona of a socialite Nazi collaborator.