Dark Fell Barn is a "perfectly isolated" retreat, or so says its website when Jayne books a reservation for her friends. A quiet place, far removed from the rest of the world, is exactly what they need. The women arrive for a girls' night ahead of their husbands. There's ex-Army Jayne, hardened and serious, but also damaged. Ruth, the driven doctor and new mother who is battling demons of her own. Young Emily, just wed and insecure, the newest addition of this tight-knit band. Missing this year is Edie, who was the glue holding them together, until her husband died suddenly. But what they hoped would be a relaxing break soon turns to horror. Upon arrival at Dark Fell Barn, the women find a devastating note claiming one of their husbands will be murdered. There are no phones, no cell service to check on their men. 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.