Маньяк запер мальчика в подвале с неработающим телефоном, на который начали звонить мёртвые дети

A short summary of the film - Black Phone (2021). Genre: Horror. Suburban Denver, 1978. Teenagers have been disappearing in the neighborhood for some time, but 13-year-old Finn is more concerned about avoiding school bullies and angering his hot-tempered father. The only person who understands him is his younger sister. But one day, Finn falls into the clutches of a serial killer and wakes up in a soundproof basement. It seems there's no hope for rescue, but soon, the killer's previous victims begin calling him on his disconnected phone.