en CB01 OFFICIAL. Marie, 56, returns home. As she steps through the door of her apartment, a sense of unease washes over her. The door is slightly ajar, and music is drifting out. As she moves further inside, strange details trigger a growing sense of anxiety. She begins to wonder — is her mind playing tricks on her, or has someone really entered her home? Fear gradually takes hold, leading her to doubt her own perception of reality.