Welcome to Christmas at Grey Gables, where everyone's a suspect.
Struggling mystery writer Nicholas Child is commissioned to help another writer finish the overdue follow up to his breakout bestseller.
Travelling to Grey Gables, the writer's Cape Cod home, in the week before Christmas, he discovers a house full of secrets, and a cast of very suspicious guests.
When two shocking deaths occur, Nicholas tries to write his account of what happened, and a perfectly fiendish puzzle starts to emerge.