When Carnie decides to return to work, she hires the neighbor's son, Matt, as a childcare provider for her 2-year-old daughter. Her husband, Nick, is hesitant about this arrangement. However, as Matt becomes more involved in their lives, it becomes evident that he harbors an unhealthy obsession with Carnie, leaving her feeling uneasy and on edge. But everything isn't what it seems: Nick has a surprising history with Matt, and a long-hidden secret is about to surface, as the tension builds, the truth threatens to unravel their lives.