Based on real-life incidences, Dirty Little Secret centers on a seventeen-year-old girl, Lucy portrayed by Lizzie Boys, struggling with painful isolation from her age mates. She refuses to welcome them near her home for the safety of her family secret- the vast mountains of commodities packed in every corner of the house.
Lucy secretly intends to disappear to college while managing her mom’s hoarding disorder. Joanna, Lucy’s mom, lives with this dysfunction in her home with a great catch, but after a tragedy happens, Lucy is forced to settle on whether to expose her mom’s secret or hide it from the world for the sake of her mom’s safety.