A couple, Tom and Alice, hoping for a peaceful getaway, rents a mid-century modern vacation home designed by a renowned yet enigmatic architect, Frederick Banner. As they settle in, the couple discovers that the house is filled with hidden secrets and mysterious features. Tom, an architect himself, finds himself intrigued by the unique design of the house, while Alice becomes increasingly unsettled by eerie occurrences and the feeling of being watched. The couple's unease grows when they encounter visiting neighbors who seem to know more about the property and its history than they let on. The atmosphere is tense as strange events and apparitions suggest that not everyone has left the house.

As Tom delves deeper into the history of the home, he uncovers clues that hint at dark deeds carried out by Frederick Banner and a possible link to the supernatural. Alice's encounters with spectral figures become more frequent and alarming, leading her to question her own sanity. Her unease is compounded by the cryptic remarks of locals and visitors who appear to have a vested interest in the house's secrets. The tension between the couple mounts as Tom becomes obsessed with unraveling the mysteries of the architecture, and Alice teeters on the edge of fear and paranoia. As they piece together the history of the house, they are confronted with terrifying revelations that threaten their relationship and their lives.