After losing her sight in a car crash for two months, Monica wakes up and miraculously regains her vision. A warning note written by her own handwriting fills her with dread. She soon realizes the couple who took care of her day and night are impostors—they murdered her real parents and disguised themselves to trick her into signing over all her real estate and savings.
The fake parents repeatedly test whether Monica can see, stabbing a knife toward her eyes and monitoring her every move, locking her inside an isolated villa with no escape. Monica pretends to stay blind to survive and secretly texts her boyfriend Ethan for help, yet all photos of him vanish from her phone, and Ethan claims the villa has long been abandoned, leaving her trapped in endless eeriness.
