A young woman trapped in a house is repeatedly assaulted by a mysterious masked man. Amid an eerie atmosphere, his depraved actions grow increasingly twisted. Two women imprisoned in a laboratory-like room are subjected to a series of bizarre experiments. In the unsettling environment, their terror intensifies. A stalker sneaks into the home of a woman livestreaming self-recorded videos, and his assault completely destroys the streamer. A female insurance salesperson is attacked by the homeowner during a visit, with the motive revealing a shocking truth. A female teacher is assaulted by a student's father during a home visit, and in that instant, fear escalates uncontrollably.