Sweet, Sweet Lonely Girl is a 2016 American horror film written and directed by A.D. Calvo and starring Erin Wilhelmi, Quinn Shephard, and Susan Kellermann. The film had its world premiere on September 22, 2016, at Fantastic Fest. Filming for Sweet, Sweet Lonely Girl took place in Vernon, Connecticut during late 2015.

Plot

Adele is a lonely young teenage girl who has been sent to care for her aunt Dora, who is agoraphobic and refuses to have any contact with Adele other than a series of messages and rules slid under her door. She seems to have an escape from this bleak existence after meeting Beth, a vibrant woman her own age and Adele's opposite in looks and personality. As they spend more time together Adele begins to adopt some of Beth's behaviors and mannerisms, which include her deliberately purchasing inexpensive versions of the items Dora asks her to buy so she can pocket the money.