Clever Girl (2017)

A young woman named Donna is caught in a slump where she can't seem to move forward with her life, which is causing a strain on her single mother. One morning the two get into an argument about Donna's lack of independence right before her mother leaves for a business trip. That night, Donna has a chilling dream but is awoken when she hears the doorbell ring. She looks through the peephole to find her mother staring back at her, however, something is off, causing her to keep the door closed. The doorbell rings incessantly for the rest of the night, but Donna waits until the morning to open it, where a truly horrifying sight awaiting her.