Special Agent Alexander Connor is sent to investigate a house where a woman named Sandra has been making numerous 911 calls. Things get even more complicated when he finds out that a police officer who responded to the home 24 hours earlier is also in danger. Soon, Connor will discover a shocking secret: that Sandra is one of LUMEN CORPORATION's donors and has dedicated her house to the corporation, which has turned it into a research lab for atrocious experiments performed on human beings.