Ruby Falls by Deborah Goodrich Royce

On a brilliantly sunny July day, six-year-old Ruby is abandoned by her father in the suffocating dark of a Tennessee cave. Twenty years later, transformed into soap opera star Eleanor Russell, she is fired under dubious circumstances. Fleeing to Europe, she marries a glamorous stranger named Orlando Montague and keeps her past closely hidden.
Together, Eleanor and Orlando start afresh in LA. Setting up house in a storybook cottage in the Hollywood Hills, Eleanor is cast in a dream role-the lead in a remake of Rebecca. As she immerses herself in that eerie gothic tale, Orlando's personality changes, ghosts of her past re-emerge, and Eleanor fears she is not the only person in her marriage with a secret.
In this thrilling and twisty homage to Daphne du Maurier's Rebecca, the story ricochets through the streets of Los Angeles, a dangerous marriage to an exotic stranger, and the mind of a young woman whose past may not release her.