Mr. Heming is a real estate agent who has the keys to every home he's ever sold in town. He has kept them all so he can observe his neighbors, not just on the street, but also behind locked doors. His disturbing hobby soon begins to form a clear pattern, and the reasons behind it come into focus. But when the quiet routine of the village is disrupted by strange occurrences, including a dead body found in the backyard of a client's home, Mr. Heming realizes it may be only a matter of time before his secrets are found out.