It is the 1970s. A young woman, Rosie, moves to a small remote seaside village, readying to welcome her first child. But with her partner working away on an oil rig, the house isn't the sanctuary she'd hoped for - the situation made worse by the regular blackouts due to the ongoing miners' strikes. And the villagers seem friendly enough, but some of them are taking an uncomfortably close interest in her pregnancy.

Before long, Rosie notices strange noises and unexplained shadows in the corners of the cottage. As her birth date moves closer and the blackouts intensify, her isolation begins to consume her until she feels that she is losing her grip on reality.

But Rosie isn't the only one in the village who has cause to fear the dark . . .