Three crime-writing sisters and their 28-year old niece use their extensive knowledge of crime to solve whodunit style murders in the picturesque English village of Wildemarsh.

When a priceless Christmas relic is stolen, royal look-alikes Margaret and Stacy turn to audacious doppelgänger Fiona — and her dashing ex — for help.

When Margaret's Christmas coronation complicates her love life, her double Stacy steps in to save the day. But will a third look-alike ruin their plan?