During a late-night video call with his girlfriend who was working overtime, the male protagonist unexpectedly discovered a strange face hidden in the half-open cabinet behind her. He hurried to his girlfriend's company, but was caught in a life-or-death fight. His best friend died tragically, the doorman threatened him with a knife, and his colleagues had ambiguous attitudes. In the building where the power is cut off, there is mutual suspicion, testing, and escape. Who is the real murderer?
