Leah, 10, has terrible nightmares. Her mother seems distant somehow, lost in her thoughts. A small, nightly visitor brings Leah comfort, but soon Leah will realize that her little visitor offers knowledge that might be very, very dangerous. Kiera Thompson, Denise Gough, Sienna Sayer, Steven Cree, Hannah Rae, Anastasia Hille, Donna Banya Added on HBO 2022-11-03. Youtube Trailer