Carl and his wife Linda plan a weekend at their seaside house in eastern England. However, Linda never arrives, and Carl becomes increasingly worried.
As he tries to find her, Carl discovers strange and disturbing things in the area. The local people behave in a suspicious way and seem to know more than they are saying. Carl also hears unsettling rumors about a mysterious man connected to the house.
The longer Linda stays missing, the more tense and confusing the situation becomes. Carl begins to doubt what is real and what might be hidden. The story develops into a mystery full of secrets, fear, and uncertainty about what really happened to Linda.