A New York sales manager is sent to the remote Scottish Highlands at Christmas to acquire a limited edition perfume from a dashing Earl preparing for his annual ball and falls in love instead.

The black sheep of the Argyll family, Jack Argyll, was accused of murdering their matriarch a year ago, but now a man shows up on their doorstep claiming Jack’s innocence. The family must come to terms with this news and the fact that the real killer might still be among them.