House Swap (2010)

A California screenwriter and his musician girlfriend trade their Echo Park residence for a grand Tudor estate in Glastonbury, seeking fresh creative inspiration. Initially thrilled with their swap, they quickly discover the mansion's dark secret: a relentless stalker who can breach secure entrances. As the couple's excitement turns to fear with each unsettling encounter, the screenwriter grows increasingly desperate. He devises a clever plan to confront and retaliate against the intruder, escalating their nightmare into a thrilling battle for their safety and sanity.