The Black Phone (2021)

Finney Blake is a shy but clever 13-year-old boy who is abducted by a sadistic killer and trapped in a soundproof basement where screaming is of no use. When a disconnected phone on the wall begins to ring, Finney discovers that he can hear the voices of the killer's previous victims. And they are dead-set on making sure that what happened to them doesn't happen to Finney.