After a long stint working as a relief doctor in Africa, a daughter returns home to her family’s lake house, bringing along her new fiancée, a soldier who was based at the compound protecting her field hospital. He charms her mother and impresses her ex-military father; they are pleased she’s back and looking forward to spending time with her.
Unbeknown to them, there is also a sinister presence that is pleased she is back and wants to spend time with her. However, this is not someone she knows, in fact, it is not someone anyone knows.
With the realisation that she is being stalked, her family and fiancée try to protect her as best they can, but with no one else around for miles and her father hampered by an old war injury, their chances of survival are slim. They barricade themselves in the house and hope this hostile attacker can’t get in.