As glimpses of Rob and Naveen's past surface, Samira pieces together key clues and makes a startling realization about their strange neighbor across the street-one that unexpectedly turns everyone's worlds upside down.

Just when the cul-de-sac crew believes they've hit a dead end in their investigation, a dangerous threat suddenly lands directly on their doorstep, putting everyone on a terrifying and thrilling collision course with the truth.