Part 3/8:

Meanwhile, Carol's life carries on. She struggles with the complexities of co-parenting with her ex-husband Tucker and balancing her career. Despite her profession as a psychiatrist, she finds herself engulfed in turmoil as she receives alarming reports from patients about their loved ones displaying increasingly erratic behaviors. The tension escalates, and her unease deepens as she learns that her friends and neighbors start losing their emotional capacities.

In a terrifying Halloween night twist, Carol witnesses a young boy exhibiting unsettling behavior towards a dog, showcasing the reach of the growing emotional void. This night ultimately pivots into a series of alarming medical cases culminating in Carol's own son, Oliver, being targeted by the contagion.