The party

When Rachel wakes up in a strange room, the morning after a neighbour|́|s party, she has no memory of what happened the night before. Why did her husband leave her alone at the party? Did they row? Why are Rachel|́|s arms so bruised? And why are her neighbours and friends so vague about what really happened? Little by little, Rachel pieces together the devastating events that took place in a friend|́|s house, at a party where she should have been...