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By the time you read this, I'll have killed one of your husbands.

In an isolated retreat, deep in the Northumberland moors, three women arrive for a weekend away.

This quiet place, far removed from the rest of the world, is exactly what they need to heal their wounds.

Their husbands will be joining them in the morning. Or so they think.

But upon arrival at Dark Fell Barn, the women find a devastating note claiming one of their husbands will be murdered. There are no phones and no ways of checking on their loved ones.

Friendships fracture as the situation spins wildly out of control. Betrayal can come in many forms.

This group has kept each other's secrets for far too long.