The ghost of William Hill (the "Tall Man") represents the literal and figurative walls people build around themselves out of fear.

The episode is the seventh episode of the first season of the Netflix horror series The Haunting of Hill House . It originally aired on October 12, 2018. Recap: Grief and Secrets

The episode highlights how Hugh’s refusal to speak about the past, intended to protect his children, ultimately alienated them. Critical Reception

Hugh discovers a body bricked up in the basement wall—revealed to be William Hill, who seemingly sealed himself in. Meanwhile, Olivia’s mental state deteriorates further, influenced by the house's malevolent entities.